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input[type=number] {\n -moz-appearance: textfield\n }\n\n img {\n width: auto;\n height: auto\n }\n\n .img-res img {\n width: auto;\n height: auto !important;\n max-width: 100% !important\n }\n\n .sub_item_img {\n width: 80px;\n height: 80px;\n overflow: hidden;\n display: inline-block;\n vertical-align: middle\n }\n\n .breadcrumb_nav_img {\n height: 300px\n }\n\n .breadcrumb_nav_box .fa.fa-home {\n color: #666\n }\n\n .breadcrumb_nav_box a {\n color: var(--main-theme-color);\n text-decoration: none;\n font-weight: 600\n }\n\n .breadcrumb_nav_box .breadcrumb_nav_position {\n text-transform: none\n }\n\n .breadcrumb_nav_box span {\n text-transform: capitalize\n }\n\n .breadcrumb_nav_wrap {\n padding: 13px 0;\n background-color: #ececec\n }\n\n .breadcrumb_nav_list {\n margin: 0;\n padding: 0;\n display: flex;\n flex-wrap: wrap\n }\n\n .breadcrumb_nav_list li {\n margin: 0;\n padding: 0;\n list-style: none;\n margin-right: 10px\n }\n\n .breadcrumb_nav_list li a {\n text-transform: capitalize\n }\n\n .breadcrumb_nav_list li a:hover {\n color: var(--main-theme-color)\n }\n\n .breadcrumb_nav_list li i {\n margin-right: 4px\n }\n\n .breadcrumb_h1_box {\n background-color: #e5e5e5;\n text-align: center;\n height: 100%;\n width: 100%\n }\n\n .breadcrumb_h1_box h1 {\n font-size: 36px;\n font-family: Arial;\n font-weight: 700;\n color: #fff;\n width: 100%\n }\n\n .language-select .dropdown-menu {\n min-width: 170px;\n height: 600px;\n overflow: auto\n }\n\n .language-select i {\n vertical-align: middle\n }\n\n .has_box .sub_box .sub_item span {\n display: inline-block;\n max-width: 60%;\n vertical-align: middle\n }\n\n [lang=ca] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=de] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=el] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=es] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=et] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=fr] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=it] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ms] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=pl] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=pt] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ro] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=sk] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=sv] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 290px\n }\n\n [lang=ca] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=de] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=el] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=es] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=et] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=fr] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=it] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ms] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=pl] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=pt] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ro] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=sk] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=sv] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ru] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 330px\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ru] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=ru] .sub_item_img {\n width: 78px;\n height: 78px\n }\n\n [lang=ru] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 13px\n }\n\n [lang=cs] .sub_item_img {\n width: 76px;\n height: 76px\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a,\n [lang=cs] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 14px\n }\n\n [lang=lv] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 260px\n }\n\n [lang=lv] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=lt] .main-nav nav .navbar-nav>.nav-item,\n [lang=vi] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 12px;\n margin-right: 12px\n }\n\n [dir=rtl] .topbar ul {\n text-align: right\n }\n\n [dir=rtl] .top-contact-area ul li i {\n margin-left: 4px;\n margin-right: 0\n }\n\n [dir=rtl] .language-select i {\n margin-left: 4px;\n margin-right: 0\n }\n\n [dir=rtl] .main-nav nav .navbar-nav {\n margin-left: 0;\n margin-right: auto\n }\n\n [dir=rtl] .searchbox {\n padding: 18px 16px 18px 0\n }\n\n [lang=ko] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 14px\n }\n\n [lang=uk] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=vi] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 310px\n }\n\n [lang=uk] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=vi] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=hu] .main-nav nav .navbar-nav>.nav-item,\n [lang=iw] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 20px;\n margin-right: 20px\n }\n\n [lang=el] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 10px;\n margin-right: 10px\n }\n\n [lang=fi] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 16px;\n margin-right: 16px\n }\n\n [lang=fi] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 15px\n }\n\n [lang=pl] .features .welcome_desc p {\n font-size: 24px\n }\n\n @media only screen and (max-width:1199px) {\n .topbar {\n border-bottom: none\n }\n }\n\n @media only screen and (max-width:767px) {\n .language-select .dropdown-menu {\n left: 0;\n right: auto;\n height: 70vh\n }\n\n .newsletter-content .default-section-heading h3 {\n font-size: 28px;\n line-height: 32px;\n padding-bottom: 18px\n }\n }\n <\/style>\n<script async src=\"https:\/\/www.googletagmanager.com\/gtag\/js?id=G-5WHCGWBZF2\"><\/script><script defer>\n function gtag() {\n dataLayer.push(arguments)\n }\n window.dataLayer = window.dataLayer || [], gtag(\"js\", new Date), gtag(\"config\", \"G-5WHCGWBZF2\"), gtag(\"config\", \"AW-10818223058\")\n <\/script><script defer>\n function gtag_report_conversion_1(n) {\n return gtag(\"event\", \"conversion\", {\n send_to: \"AW-10818223058\/VD_JCK_UqIcDENL3w6Yo\",\n event_callback: function() {\n void 0 !== n && (window.location = n)\n }\n }), !1\n }\n <\/script>\n<\/head>\n<body>\n <div class=\"topbar inside_pages_site\">\n <div class=\"w1200\">\n <div class=\"topbar-content\">\n <div class=\"row align-items-center\">\n <div class=\"col-xl-9 col-md-6 col-sm-12 col-12\">\n <div 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<\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/features-of-knife-gate-valve.html\" title=\"\u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648\">\u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648<\/a> <\/h4>\n <p>\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648 \u0646\u06cc\u0632 \u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648\u060c \u062f\u0631\u06cc\u0686\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648\u060c \u0634\u06cc\u0631 \u062f\u0648\u063a\u0627\u0628 \u0648 \u0634\u06cc\u0631 \u06af\u0644\u06cc \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f. \u0642\u0633\u0645\u062a \u0647\u0627\u06cc \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0622\u0646 \u0635\u0641\u062d\u0627\u062a \u06af\u06cc\u062a \u0647\u0633\u062a\u0646\u062f. \u062c\u0647\u062a \u062d\u0631\u06a9\u062a \u0635\u0641\u062d\u0647 \u06af\u06cc\u062a \u0639\u0645\u0648\u062f \u0628\u0631 \u062c\u0647\u062a \u0633\u06cc\u0627\u0644 \u0627\u0633\u062a. \u0645\u062d\u06cc\u0637 \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u062f\u0631\u0648\u0627\u0632\u0647 \u0644\u0628\u0647 \u0686\u0627\u0642\u0648 \u0642\u0637\u0639 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0648\u0627\u062f \u0641\u06cc\u0628\u0631\u06cc \u0631\u0627 \u0642\u0637\u0639 \u06a9\u0646\u062f. \u0635\u0641\u062d\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u062f\u0627\u0631\u0627\u06cc \u062f\u0648 \u0633\u0637\u062d \u0622\u0628 \u0628\u0646\u062f\u06cc \u0627\u0633\u062a. \u062f\u0648 \u0633\u0637\u062d \u0622\u0628 \u0628\u0646\u062f\u06cc \u0631\u0627\u06cc\u062c \u062a\u0631\u06cc\u0646 \u062d\u0627\u0644\u062a \u062f\u0631\u06cc\u0686\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u0641\u0631\u0645 w<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/features-of-knife-gate-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f\"> <img class=\"lazy\" alt=\"\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u0627\u06a9\u062a\u0628\u0631 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f\">\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f<\/a> <\/h4>\n <p>\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u06cc\u06a9 \u062f\u0631\u06cc\u0686\u0647 \u0647\u06cc\u062f\u0631\u0648\u0644\u06cc\u06a9\u06cc \u0639\u0645\u0644 \u0634\u062f\u0647 \u0628\u0627 \u062f\u0631\u06cc\u0686\u0647 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062f\u0631\u06cc\u0686\u0647 \u0631\u0627\u0647\u0646\u0645\u0627 \u0627\u0633\u062a. \u0627\u063a\u0644\u0628 \u0628\u0631\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u062e\u0648\u062f\u06a9\u0627\u0631 \u062f\u0631 \u0622\u0628 \u0631\u0633\u0627\u0646\u06cc \u0648 \u0632\u0647\u06a9\u0634\u06cc \u0648 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f. \u067e\u0627\u0633\u062e \u06a9\u0646\u062a\u0631\u0644 \u062f\u0642\u06cc\u0642 \u0648 \u0633\u0631\u06cc\u0639 \u0627\u0633\u062a \u0648 \u0633\u06cc\u0633\u062a\u0645 \u062e\u0637 \u0644\u0648\u0644\u0647 \u0627\u0632 \u0631\u0627\u0647 \u062f\u0648\u0631 \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0633\u06cc\u06af\u0646\u0627\u0644 \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f \u062a\u0627 \u0639\u0645\u0644\u06cc\u0627\u062a \u0627\u0632 \u0631\u0627\u0647 \u062f\u0648\u0631 \u062a\u062d\u0642\u0642 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u062f. \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631\u06cc\u0686\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u0648 \u062f\u0631\u06cc\u0686\u0647 \u067e\u0631\u0648\u0627\u0646\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0639\u0627\u0645\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u0632\u0631\u06af \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/what-is-electric-control-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\"> <img class=\"lazy\" alt=\"\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u0627\u06a9\u062a\u0628\u0631 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\">\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc<\/a> <\/h4>\n <p>\u062f\u0631\u06cc\u0686\u0647 \u067e\u0646\u0648\u0645\u0627\u062a\u06cc\u06a9 \u062f\u0631\u06cc\u0686\u0647 \u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062a\u0648\u0633\u0637 \u0647\u0648\u0627\u06cc \u0641\u0634\u0631\u062f\u0647 \u0631\u0627\u0646\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f. \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u062e\u0631\u06cc\u062f \u0634\u06cc\u0631\u0647\u0627\u06cc \u067e\u0646\u0648\u0645\u0627\u062a\u06cc\u06a9\u060c \u062a\u0646\u0647\u0627 \u0644\u0627\u0632\u0645 \u0627\u0633\u062a \u0645\u0634\u062e\u0635\u0627\u062a\u060c \u0627\u0646\u0648\u0627\u0639\u060c \u0648 \u0641\u0634\u0627\u0631\u0647\u0627\u06cc \u06a9\u0627\u0631\u06cc \u0628\u0631\u0627\u06cc \u067e\u0627\u0633\u062e\u06af\u0648\u06cc\u06cc \u0628\u0647 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u062e\u0631\u06cc\u062f \u0645\u0634\u062e\u0635 \u0634\u0648\u062f. \u062c\u0631\u06cc\u0627\u0646. \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u067e\u0646\u0648\u0645\u0627\u062a\u06cc\u06a9 \u0628\u0627 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u062a\u0641\u0627\u0648\u062a \u0645\u0646\u0628\u0639 \u0633\u06cc\u06af\u0646\u0627\u0644 \u0627\u0633\u062a. \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0627\u0632 \u0628\u0631\u0642 \u0628\u0631\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u06af\u0627\u0632 \u062e\u0644\u0628\u0627\u0646 \u0628\u0631\u0627\u06cc \u0647\u0644 \u062f\u0627\u062f\u0646 \u0647\u0633\u062a\u0647 \u062f\u0631\u06cc\u0686\u0647 \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0648\u062e\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/how-to-maintain-the-control-valve.html\" title=\"\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f\"> <img class=\"lazy\" alt=\"\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637133592_Manual-valve.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u0627\u06a9\u062a\u0628\u0631 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/how-to-maintain-the-control-valve.html\" title=\"\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f\">\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f<\/a> <\/h4>\n <p>\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u062f\u0627\u0631\u0627\u06cc \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0633\u0627\u062e\u062a\u0627\u0631 \u0633\u0627\u062f\u0647 \u0648 \u0639\u0645\u0644 \u0642\u0627\u0628\u0644 \u0627\u0639\u062a\u0645\u0627\u062f \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0627 \u0645\u062d\u06cc\u0637 \u0641\u0631\u0627\u06cc\u0646\u062f \u062f\u0631 \u062a\u0645\u0627\u0633 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0627\u0633\u062a\u060c \u0639\u0645\u0644\u06a9\u0631\u062f \u0622\u0646 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0631 \u06a9\u06cc\u0641\u06cc\u062a \u0633\u06cc\u0633\u062a\u0645 \u0648 \u0622\u0644\u0648\u062f\u06af\u06cc \u0645\u062d\u06cc\u0637 \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc \u06af\u0630\u0627\u0631\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062f\u0631\u06cc\u0686\u0647 \u06a9\u0646\u062a\u0631\u0644 \u0628\u0627\u06cc\u062f \u0628\u0647 \u0637\u0648\u0631 \u0645\u0646\u0638\u0645 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0648 \u062a\u0639\u0645\u06cc\u0631 \u0634\u0648\u062f\u060c \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0633\u062e\u062a \u0648 \u0645\u0647\u0645 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc. \u0628\u0647 \u0645\u0646\u0627\u0633\u0628\u062a\u060c \u0628\u0627\u06cc\u062f \u0628\u0647 \u06a9\u0627\u0631 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0628\u06cc\u0634\u062a\u0631 \u062a\u0648\u062c\u0647 \u0634\u0648\u062f. \u06a9\u0644\u06cc\u062f<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/how-to-maintain-the-control-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f\"> <img class=\"lazy\" alt=\"\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029199_t-video.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u06cc\u062f\u0644\u0627\u06cc\u0645\u062e\u06cc\u0631\u0627\u062a 2022 \u0633\u067e\u062a\u0627\u0645\u0628\u0631 07<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f\">\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f<\/a> <\/h4>\n <p>1. \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0648\u0686\u06a9. \u06a9\u0627\u0646\u0627\u0644 \u0645\u062a\u0648\u0633\u0637 \u062f\u0627\u062e\u0644 \u0628\u062f\u0646\u0647 \u0634\u06cc\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0627\u0633\u062a\u060c \u0645\u062d\u06cc\u0637 \u062f\u0631 \u06cc\u06a9 \u062e\u0637 \u0645\u0633\u062a\u0642\u06cc\u0645 \u062c\u0631\u06cc\u0627\u0646 \u062f\u0627\u0631\u062f\u060c \u0648 \u0645\u0642\u0627\u0648\u0645\u062a \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0648\u0686\u06a9 \u0627\u0633\u062a. \u06f2- \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0628\u06cc\u0634\u062a\u0631 \u0635\u0631\u0641\u0647 \u062c\u0648\u06cc\u06cc \u062f\u0631 \u0646\u06cc\u0631\u0648\u06cc \u06a9\u0627\u0631 \u0627\u0633\u062a. \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u062f\u0631\u06cc\u0686\u0647 \u06a9\u0631\u0647 \u0632\u0645\u06cc\u0646\u060c \u0686\u0648\u0646 \u0686\u0647 \u0628\u0627\u0632 \u0628\u0627\u0634\u062f \u0648 \u0686\u0647 \u0628\u0633\u062a\u0647\u060c \u062c\u0647\u062a \u062d\u0631\u06a9\u062a \u062f\u0631\u0648\u0627\u0632\u0647 \u0639\u0645\u0648\u062f \u0628\u0631 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0645\u062d\u06cc\u0637 \u0627\u0633\u062a. 3. \u0627\u0631\u062a\u0641\u0627\u0639 \u0628\u0632\u0631\u06af \u0627\u0633\u062a \u0648 \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 ti<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f\"> <img class=\"lazy\" alt=\"\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029164_about_icon2.png?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u06cc\u062f\u0644\u0627\u06cc\u0645\u062e\u06cc\u0631\u0627\u062a 2022 \u0633\u067e\u062a\u0627\u0645\u0628\u0631 07<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f\">\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f<\/a> <\/h4>\n <p>1. \u0634\u06cc\u0631 solenoid \u062f\u0627\u0631\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0636\u062f \u0646\u0634\u062a \u0639\u0627\u0644\u06cc, \u0628\u0627\u0632 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0628\u0633\u062a\u0647 \u0628\u0647 \u0633\u0631\u0639\u062a, \u0648 \u0642\u062f\u0631\u062a \u067e\u0627\u06cc\u06cc\u0646. \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0642\u0637\u0639 \u062f\u0631 \u0628\u0631\u062e\u06cc \u0627\u0632 \u062e\u0637\u0648\u0637 \u0644\u0648\u0644\u0647 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u062e\u0648\u0631\u062f\u06af\u06cc \u0648 \u0633\u0645\u06cc\u062a \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a\u061b \u0634\u06cc\u0631\u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0628\u0631\u0627\u06cc \u062a\u0646\u0638\u06cc\u0645 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637 \u0644\u0648\u0644\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0648 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0639\u0645\u0648\u0644 \u062f\u0631 \u062a\u0623\u0645\u06cc\u0646 \u0647\u0648\u0627 \u0648 \u062a\u0628\u0631\u06cc\u062f \u0646\u0635\u0628 \u0645\u06cc \u0634\u0648\u0646\u062f. \u062e\u0631\u0648\u062c\u06cc \u0647\u0648\u0627\u06cc\u06cc \u062e\u0637 \u0644\u0648\u0644\u0647 \u0646\u06cc\u0632 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u062e\u0637\u0648\u0637 \u0644\u0648\u0644\u0647 \u0645\u0627\u06cc\u0639 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u06af\u06cc\u0631\u062f\u060c \u0648 \u0628\u0647 \u0637\u0648\u0631 \u06af\u0633\u062a\u0631\u062f\u0647 \u0627\u06cc \u062f\u0631 \u06a9\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"col-lg-12 col-md-12 col-12 pagination-box wow fadeInUp\">\n <nav aria-label=\"Page navigation example\"><ul class=\"pagination\">\n<li class=\"active\"><a href=\"javascript:void(0);\">1<\/a><\/li>\n <li><a href=\"https:\/\/fa.covna-china.com\/articles\/all\/2.html\">2<\/a><\/li>\n <li><a href=\"https:\/\/fa.covna-china.com\/articles\/all\/3.html\">3<\/a><\/li>\n <li><a 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<ul>\n<li> <a href=\"https:\/\/fa.covna-china.com\/\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062e\u0627\u0646\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/products\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u0645\u062d\u0635\u0648\u0644\u0627\u062a<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/page\/about-us.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062f\u0631 \u0628\u0627\u0631\u0647 \u0645\u0627<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/projects\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u067e\u0631\u0648\u0698\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/articles\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u0648\u0628\u0644\u0627\u06af<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/videos\/lives.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u0632\u0646\u062f\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/encyclopedias\/encyclopedia.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062f\u0627\u0646\u0634\u0646\u0627\u0645\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/page\/contact-us.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062a\u0645\u0627\u0633 \u0628\u0627 \u0645\u0627<\/a> <\/li>\n <\/ul>\n<\/div>\n <div class=\"footer-links footer-contact wow fadeInUp\">\n <h3 class=\"ft_title\">\u062a\u0645\u0627\u0633 \u0628\u0627 \u0645\u0627<\/h3>\n <ul>\n<li> <i class=\"fa fa-envelope\"><\/i>\n <p>\u0627\u06cc\u0645\u06cc\u0644:<\/p> <a href=\"mailto:inquiry@covna-china.com\">inquiry@covna-china.com<\/a>\n <\/li>\n <li> <i class=\"fas fa-phone-alt\" style=\"font-size:20px\"><\/i>\n <p>\u062a\u0644\u0641\u0646:<\/p> <a href=\"tel:8613556641138\">+86-1355-6641138<\/a>\n <\/li>\n <li> <i class=\"fas fa-map-marker-alt\" style=\"font-size:20px\"><\/i>\n <p>\u0645\u062d\u0644:<\/p>\n <p>Longchang Micro-Chuangyuan, Dongcheng District Dongguan City, China, 523000<\/p>\n <\/li>\n <\/ul>\n<\/div>\n <div class=\"footer-links footer-form wow fadeInUp\">\n <h3>\u0627\u0634\u062a\u0631\u0627\u06a9<\/h3>\n <p>\u0639\u0636\u0648\u06cc\u062a \u062f\u0631 \u062e\u0628\u0631\u0646\u0627\u0645\u0647 \u0645\u0627 \u0628\u0631\u0627\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u0627\u062e\u0628\u0627\u0631 \u0628\u0647 \u0631\u0648\u0632 \u0634\u062f\u0647 \u0645\u0627!<\/p>\n <form class=\"form-35ae53c76b5ee1daa4a720360e3a6dfd\" action=\"https:\/\/inquiry.digoodcms.com\/api\/covna\" method=\"POST\"> <input name=\"page\" type=\"hidden\" value><input id=\"backpage2\" name=\"backpage\" type=\"hidden\" value><div class=\"input-group\"> <input type=\"text\" name=\"contact[fullname]\" class=\"form-control2\" required placeholder=\"*\u0646\u0627\u0645 \u0634\u0645\u0627\">\n<\/div>\n <div class=\"input-group\"> <input type=\"email\" name=\"email\" class=\"form-control2\" placeholder=\"*\u0627\u06cc\u0645\u06cc\u0644 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class=\"custom-832d79346386d659f3edcd67e774aaf1_zipCode\" name=\"custom[zipCode]\" type=\"hidden\" value><input class=\"custom-832d79346386d659f3edcd67e774aaf1_latitude\" name=\"custom[latitude]\" type=\"hidden\" value><input class=\"custom-832d79346386d659f3edcd67e774aaf1_longitude\" name=\"custom[longitude]\" type=\"hidden\" value><input class=\"custom-832d79346386d659f3edcd67e774aaf1_timeZone\" name=\"custom[timeZone]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_ipAddress\" name=\"geoip[ipAddress]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_countryName\" name=\"geoip[countryName]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_countryCode\" name=\"geoip[countryCode]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_regionName\" name=\"geoip[regionName]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_cityName\" name=\"geoip[cityName]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_zipCode\" name=\"geoip[zipCode]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_latitude\" name=\"geoip[latitude]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_longitude\" name=\"geoip[longitude]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_timeZone\" name=\"geoip[timeZone]\" type=\"hidden\" value><input name=\"useragent[browser]\" type=\"hidden\" value=\"Chrome[86.0.4240.75]\"><input name=\"useragent[platform]\" type=\"hidden\" value=\"Windows 10\"><input name=\"useragent[lang]\" type=\"hidden\" value=\"zh-CN,zh;q=0.9,ja;q=0.8,en-US;q=0.7,en;q=0.6,zh-TW;q=0.5\"><input name=\"useragent[mobile]\" type=\"hidden\" value=\"No\"><input name=\"useragent[agent_string]\" type=\"hidden\" value=\"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/86.0.4240.75 Safari\/537.36\">\n<\/form>\n 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input[type=number] {\n -moz-appearance: textfield\n }\n\n img {\n width: auto;\n height: auto\n }\n\n .img-res img {\n width: auto;\n height: auto !important;\n max-width: 100% !important\n }\n\n .sub_item_img {\n width: 80px;\n height: 80px;\n overflow: hidden;\n display: inline-block;\n vertical-align: middle\n }\n\n .breadcrumb_nav_img {\n height: 300px\n }\n\n .breadcrumb_nav_box .fa.fa-home {\n color: #666\n }\n\n .breadcrumb_nav_box a {\n color: var(--main-theme-color);\n text-decoration: none;\n font-weight: 600\n }\n\n .breadcrumb_nav_box .breadcrumb_nav_position {\n text-transform: none\n }\n\n .breadcrumb_nav_box span {\n text-transform: capitalize\n }\n\n .breadcrumb_nav_wrap {\n padding: 13px 0;\n background-color: #ececec\n }\n\n .breadcrumb_nav_list {\n margin: 0;\n padding: 0;\n display: flex;\n flex-wrap: wrap\n }\n\n .breadcrumb_nav_list li {\n margin: 0;\n padding: 0;\n list-style: none;\n margin-right: 10px\n }\n\n .breadcrumb_nav_list li a {\n text-transform: capitalize\n }\n\n .breadcrumb_nav_list li a:hover {\n color: var(--main-theme-color)\n }\n\n .breadcrumb_nav_list li i {\n margin-right: 4px\n }\n\n .breadcrumb_h1_box {\n background-color: #e5e5e5;\n text-align: center;\n height: 100%;\n width: 100%\n }\n\n .breadcrumb_h1_box h1 {\n font-size: 36px;\n font-family: Arial;\n font-weight: 700;\n color: #fff;\n width: 100%\n }\n\n .language-select .dropdown-menu {\n min-width: 170px;\n height: 600px;\n overflow: auto\n }\n\n .language-select i {\n vertical-align: middle\n }\n\n .has_box .sub_box .sub_item span {\n display: inline-block;\n max-width: 60%;\n vertical-align: middle\n }\n\n [lang=ca] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=de] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=el] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=es] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=et] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=fr] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=it] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ms] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=pl] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=pt] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ro] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=sk] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=sv] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 290px\n }\n\n [lang=ca] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=de] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=el] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=es] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=et] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=fr] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=it] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ms] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=pl] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=pt] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ro] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=sk] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=sv] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ru] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 330px\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ru] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=ru] .sub_item_img {\n width: 78px;\n height: 78px\n }\n\n [lang=ru] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 13px\n }\n\n [lang=cs] .sub_item_img {\n width: 76px;\n height: 76px\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a,\n [lang=cs] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 14px\n }\n\n [lang=lv] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 260px\n }\n\n [lang=lv] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=lt] .main-nav nav .navbar-nav>.nav-item,\n [lang=vi] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 12px;\n margin-right: 12px\n }\n\n [dir=rtl] .topbar ul {\n text-align: right\n }\n\n [dir=rtl] .top-contact-area ul li i {\n margin-left: 4px;\n margin-right: 0\n }\n\n [dir=rtl] .language-select i {\n margin-left: 4px;\n margin-right: 0\n }\n\n [dir=rtl] .main-nav nav .navbar-nav {\n margin-left: 0;\n margin-right: auto\n }\n\n [dir=rtl] .searchbox {\n padding: 18px 16px 18px 0\n }\n\n [lang=ko] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 14px\n }\n\n [lang=uk] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=vi] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 310px\n }\n\n [lang=uk] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=vi] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=hu] .main-nav nav .navbar-nav>.nav-item,\n [lang=iw] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 20px;\n margin-right: 20px\n }\n\n [lang=el] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 10px;\n margin-right: 10px\n }\n\n [lang=fi] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 16px;\n margin-right: 16px\n }\n\n [lang=fi] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 15px\n }\n\n [lang=pl] .features .welcome_desc p {\n font-size: 24px\n }\n\n @media only screen and (max-width:1199px) {\n .topbar {\n border-bottom: none\n }\n }\n\n @media only screen and (max-width:767px) {\n .language-select .dropdown-menu {\n left: 0;\n right: auto;\n height: 70vh\n }\n\n .newsletter-content .default-section-heading h3 {\n font-size: 28px;\n line-height: 32px;\n padding-bottom: 18px\n }\n }\n <\/style>\n<script async src=\"https:\/\/www.googletagmanager.com\/gtag\/js?id=G-5WHCGWBZF2\"><\/script><script defer>\n function gtag() {\n dataLayer.push(arguments)\n }\n window.dataLayer = window.dataLayer || [], gtag(\"js\", new Date), gtag(\"config\", \"G-5WHCGWBZF2\"), gtag(\"config\", \"AW-10818223058\")\n <\/script><script defer>\n function gtag_report_conversion_1(n) {\n return gtag(\"event\", \"conversion\", {\n send_to: \"AW-10818223058\/VD_JCK_UqIcDENL3w6Yo\",\n event_callback: function() {\n void 0 !== n && (window.location = n)\n }\n }), !1\n }\n <\/script>\n<\/head>\n<body>\n <div class=\"topbar inside_pages_site\">\n <div class=\"w1200\">\n <div class=\"topbar-content\">\n <div class=\"row align-items-center\">\n <div class=\"col-xl-9 col-md-6 col-sm-12 col-12\">\n <div 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<\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/features-of-knife-gate-valve.html\" title=\"\u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648\">\u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648<\/a> <\/h4>\n <p>\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648 \u0646\u06cc\u0632 \u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648\u060c \u062f\u0631\u06cc\u0686\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0627\u0642\u0648\u060c \u0634\u06cc\u0631 \u062f\u0648\u063a\u0627\u0628 \u0648 \u0634\u06cc\u0631 \u06af\u0644\u06cc \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f. \u0642\u0633\u0645\u062a \u0647\u0627\u06cc \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0622\u0646 \u0635\u0641\u062d\u0627\u062a \u06af\u06cc\u062a \u0647\u0633\u062a\u0646\u062f. \u062c\u0647\u062a \u062d\u0631\u06a9\u062a \u0635\u0641\u062d\u0647 \u06af\u06cc\u062a \u0639\u0645\u0648\u062f \u0628\u0631 \u062c\u0647\u062a \u0633\u06cc\u0627\u0644 \u0627\u0633\u062a. \u0645\u062d\u06cc\u0637 \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u062f\u0631\u0648\u0627\u0632\u0647 \u0644\u0628\u0647 \u0686\u0627\u0642\u0648 \u0642\u0637\u0639 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0648\u0627\u062f \u0641\u06cc\u0628\u0631\u06cc \u0631\u0627 \u0642\u0637\u0639 \u06a9\u0646\u062f. \u0635\u0641\u062d\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u062f\u0627\u0631\u0627\u06cc \u062f\u0648 \u0633\u0637\u062d \u0622\u0628 \u0628\u0646\u062f\u06cc \u0627\u0633\u062a. \u062f\u0648 \u0633\u0637\u062d \u0622\u0628 \u0628\u0646\u062f\u06cc \u0631\u0627\u06cc\u062c \u062a\u0631\u06cc\u0646 \u062d\u0627\u0644\u062a \u062f\u0631\u06cc\u0686\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u0641\u0631\u0645 w<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/features-of-knife-gate-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f\"> <img class=\"lazy\" alt=\"\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u0627\u06a9\u062a\u0628\u0631 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f\">\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0686\u06cc\u0647\u061f<\/a> <\/h4>\n <p>\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u06cc\u06a9 \u062f\u0631\u06cc\u0686\u0647 \u0647\u06cc\u062f\u0631\u0648\u0644\u06cc\u06a9\u06cc \u0639\u0645\u0644 \u0634\u062f\u0647 \u0628\u0627 \u062f\u0631\u06cc\u0686\u0647 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062f\u0631\u06cc\u0686\u0647 \u0631\u0627\u0647\u0646\u0645\u0627 \u0627\u0633\u062a. \u0627\u063a\u0644\u0628 \u0628\u0631\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u062e\u0648\u062f\u06a9\u0627\u0631 \u062f\u0631 \u0622\u0628 \u0631\u0633\u0627\u0646\u06cc \u0648 \u0632\u0647\u06a9\u0634\u06cc \u0648 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f. \u067e\u0627\u0633\u062e \u06a9\u0646\u062a\u0631\u0644 \u062f\u0642\u06cc\u0642 \u0648 \u0633\u0631\u06cc\u0639 \u0627\u0633\u062a \u0648 \u0633\u06cc\u0633\u062a\u0645 \u062e\u0637 \u0644\u0648\u0644\u0647 \u0627\u0632 \u0631\u0627\u0647 \u062f\u0648\u0631 \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0633\u06cc\u06af\u0646\u0627\u0644 \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f \u062a\u0627 \u0639\u0645\u0644\u06cc\u0627\u062a \u0627\u0632 \u0631\u0627\u0647 \u062f\u0648\u0631 \u062a\u062d\u0642\u0642 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u062f. \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631\u06cc\u0686\u0647 \u062f\u0631\u0648\u0627\u0632\u0647 \u0648 \u062f\u0631\u06cc\u0686\u0647 \u067e\u0631\u0648\u0627\u0646\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0639\u0627\u0645\u0644 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u0632\u0631\u06af \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/what-is-electric-control-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\"> <img class=\"lazy\" alt=\"\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u0627\u06a9\u062a\u0628\u0631 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\">\u062a\u0641\u0627\u0648\u062a \u0634\u06cc\u0631 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc \u0647\u0648\u0627 \u0628\u0627 \u0634\u06cc\u0631 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc<\/a> <\/h4>\n <p>\u062f\u0631\u06cc\u0686\u0647 \u067e\u0646\u0648\u0645\u0627\u062a\u06cc\u06a9 \u062f\u0631\u06cc\u0686\u0647 \u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062a\u0648\u0633\u0637 \u0647\u0648\u0627\u06cc \u0641\u0634\u0631\u062f\u0647 \u0631\u0627\u0646\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f. \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u062e\u0631\u06cc\u062f \u0634\u06cc\u0631\u0647\u0627\u06cc \u067e\u0646\u0648\u0645\u0627\u062a\u06cc\u06a9\u060c \u062a\u0646\u0647\u0627 \u0644\u0627\u0632\u0645 \u0627\u0633\u062a \u0645\u0634\u062e\u0635\u0627\u062a\u060c \u0627\u0646\u0648\u0627\u0639\u060c \u0648 \u0641\u0634\u0627\u0631\u0647\u0627\u06cc \u06a9\u0627\u0631\u06cc \u0628\u0631\u0627\u06cc \u067e\u0627\u0633\u062e\u06af\u0648\u06cc\u06cc \u0628\u0647 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u062e\u0631\u06cc\u062f \u0645\u0634\u062e\u0635 \u0634\u0648\u062f. \u062c\u0631\u06cc\u0627\u0646. \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u067e\u0646\u0648\u0645\u0627\u062a\u06cc\u06a9 \u0628\u0627 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u062a\u0641\u0627\u0648\u062a \u0645\u0646\u0628\u0639 \u0633\u06cc\u06af\u0646\u0627\u0644 \u0627\u0633\u062a. \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0627\u0632 \u0628\u0631\u0642 \u0628\u0631\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u06af\u0627\u0632 \u062e\u0644\u0628\u0627\u0646 \u0628\u0631\u0627\u06cc \u0647\u0644 \u062f\u0627\u062f\u0646 \u0647\u0633\u062a\u0647 \u062f\u0631\u06cc\u0686\u0647 \u0628\u0631\u0627\u06cc \u062a\u063a\u06cc\u06cc\u0631 \u0648\u062e\u06cc\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/how-to-maintain-the-control-valve.html\" title=\"\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f\"> <img class=\"lazy\" alt=\"\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637133592_Manual-valve.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u0627\u06a9\u062a\u0628\u0631 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/how-to-maintain-the-control-valve.html\" title=\"\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f\">\u0686\u06af\u0648\u0646\u0647 \u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u0631\u0627 \u062d\u0641\u0638 \u06a9\u0646\u06cc\u0645\u061f<\/a> <\/h4>\n <p>\u0634\u06cc\u0631 \u06a9\u0646\u062a\u0631\u0644 \u062f\u0627\u0631\u0627\u06cc \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0633\u0627\u062e\u062a\u0627\u0631 \u0633\u0627\u062f\u0647 \u0648 \u0639\u0645\u0644 \u0642\u0627\u0628\u0644 \u0627\u0639\u062a\u0645\u0627\u062f \u0627\u0633\u062a\u060c \u0627\u0645\u0627 \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0627 \u0645\u062d\u06cc\u0637 \u0641\u0631\u0627\u06cc\u0646\u062f \u062f\u0631 \u062a\u0645\u0627\u0633 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0627\u0633\u062a\u060c \u0639\u0645\u0644\u06a9\u0631\u062f \u0622\u0646 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0631 \u06a9\u06cc\u0641\u06cc\u062a \u0633\u06cc\u0633\u062a\u0645 \u0648 \u0622\u0644\u0648\u062f\u06af\u06cc \u0645\u062d\u06cc\u0637 \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc \u06af\u0630\u0627\u0631\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062f\u0631\u06cc\u0686\u0647 \u06a9\u0646\u062a\u0631\u0644 \u0628\u0627\u06cc\u062f \u0628\u0647 \u0637\u0648\u0631 \u0645\u0646\u0638\u0645 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0648 \u062a\u0639\u0645\u06cc\u0631 \u0634\u0648\u062f\u060c \u0628\u0647 \u0648\u06cc\u0698\u0647 \u0628\u0631\u0627\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0633\u062e\u062a \u0648 \u0645\u0647\u0645 \u0639\u0645\u0644\u06cc\u0627\u062a\u06cc. \u0628\u0647 \u0645\u0646\u0627\u0633\u0628\u062a\u060c \u0628\u0627\u06cc\u062f \u0628\u0647 \u06a9\u0627\u0631 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u0628\u06cc\u0634\u062a\u0631 \u062a\u0648\u062c\u0647 \u0634\u0648\u062f. \u06a9\u0644\u06cc\u062f<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/how-to-maintain-the-control-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f\"> <img class=\"lazy\" alt=\"\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029199_t-video.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u06cc\u062f\u0644\u0627\u06cc\u0645\u062e\u06cc\u0631\u0627\u062a 2022 \u0633\u067e\u062a\u0627\u0645\u0628\u0631 07<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f\">\u0634\u06cc\u0631 \u062f\u0631\u0648\u0627\u0632\u0647 \u0686\u0647 \u0645\u0632\u0627\u06cc\u0627\u06cc\u06cc \u062f\u0627\u0631\u062f\u061f<\/a> <\/h4>\n <p>1. \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0648\u0686\u06a9. \u06a9\u0627\u0646\u0627\u0644 \u0645\u062a\u0648\u0633\u0637 \u062f\u0627\u062e\u0644 \u0628\u062f\u0646\u0647 \u0634\u06cc\u0631 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0627\u0633\u062a\u060c \u0645\u062d\u06cc\u0637 \u062f\u0631 \u06cc\u06a9 \u062e\u0637 \u0645\u0633\u062a\u0642\u06cc\u0645 \u062c\u0631\u06cc\u0627\u0646 \u062f\u0627\u0631\u062f\u060c \u0648 \u0645\u0642\u0627\u0648\u0645\u062a \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0648\u0686\u06a9 \u0627\u0633\u062a. \u06f2- \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 \u0634\u062f\u0646 \u0628\u06cc\u0634\u062a\u0631 \u0635\u0631\u0641\u0647 \u062c\u0648\u06cc\u06cc \u062f\u0631 \u0646\u06cc\u0631\u0648\u06cc \u06a9\u0627\u0631 \u0627\u0633\u062a. \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u062f\u0631\u06cc\u0686\u0647 \u06a9\u0631\u0647 \u0632\u0645\u06cc\u0646\u060c \u0686\u0648\u0646 \u0686\u0647 \u0628\u0627\u0632 \u0628\u0627\u0634\u062f \u0648 \u0686\u0647 \u0628\u0633\u062a\u0647\u060c \u062c\u0647\u062a \u062d\u0631\u06a9\u062a \u062f\u0631\u0648\u0627\u0632\u0647 \u0639\u0645\u0648\u062f \u0628\u0631 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0645\u062d\u06cc\u0637 \u0627\u0633\u062a. 3. \u0627\u0631\u062a\u0641\u0627\u0639 \u0628\u0632\u0631\u06af \u0627\u0633\u062a \u0648 \u0628\u0627\u0632 \u0648 \u0628\u0633\u062a\u0647 ti<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/fa.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f\"> <img class=\"lazy\" alt=\"\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029164_about_icon2.png?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>\u06cc\u062f\u0644\u0627\u06cc\u0645\u062e\u06cc\u0631\u0627\u062a 2022 \u0633\u067e\u062a\u0627\u0645\u0628\u0631 07<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/fa.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f\">\u0622\u06cc\u0627 \u062a\u0641\u0627\u0648\u062a \u062f\u0631\u06cc\u0686\u0647 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0648 \u0634\u06cc\u0631 \u0633\u0644\u0646\u0648\u0626\u06cc\u062f \u0631\u0627 \u0645\u06cc \u062f\u0627\u0646\u06cc\u062f\u061f<\/a> <\/h4>\n <p>1. \u0634\u06cc\u0631 solenoid \u062f\u0627\u0631\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0636\u062f \u0646\u0634\u062a \u0639\u0627\u0644\u06cc, \u0628\u0627\u0632 \u0645\u06cc \u0634\u0648\u062f \u0648 \u0628\u0633\u062a\u0647 \u0628\u0647 \u0633\u0631\u0639\u062a, \u0648 \u0642\u062f\u0631\u062a \u067e\u0627\u06cc\u06cc\u0646. \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0642\u0637\u0639 \u062f\u0631 \u0628\u0631\u062e\u06cc \u0627\u0632 \u062e\u0637\u0648\u0637 \u0644\u0648\u0644\u0647 \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f \u062e\u0648\u0631\u062f\u06af\u06cc \u0648 \u0633\u0645\u06cc\u062a \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a\u061b \u0634\u06cc\u0631\u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0628\u0631\u0627\u06cc \u062a\u0646\u0638\u06cc\u0645 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637 \u0644\u0648\u0644\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0648 \u0628\u0647 \u0637\u0648\u0631 \u0645\u0639\u0645\u0648\u0644 \u062f\u0631 \u062a\u0623\u0645\u06cc\u0646 \u0647\u0648\u0627 \u0648 \u062a\u0628\u0631\u06cc\u062f \u0646\u0635\u0628 \u0645\u06cc \u0634\u0648\u0646\u062f. \u062e\u0631\u0648\u062c\u06cc \u0647\u0648\u0627\u06cc\u06cc \u062e\u0637 \u0644\u0648\u0644\u0647 \u0646\u06cc\u0632 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u062e\u0637\u0648\u0637 \u0644\u0648\u0644\u0647 \u0645\u0627\u06cc\u0639 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u06af\u06cc\u0631\u062f\u060c \u0648 \u0628\u0647 \u0637\u0648\u0631 \u06af\u0633\u062a\u0631\u062f\u0647 \u0627\u06cc \u062f\u0631 \u06a9\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f<\/p> <a class=\"read-more-btn\" href=\"https:\/\/fa.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\">\u0627\u062f\u0627\u0645\u0647 >><\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"col-lg-12 col-md-12 col-12 pagination-box wow fadeInUp\">\n <nav aria-label=\"Page navigation example\"><ul class=\"pagination\">\n<li class=\"active\"><a href=\"javascript:void(0);\">1<\/a><\/li>\n <li><a href=\"https:\/\/fa.covna-china.com\/articles\/all\/2.html\">2<\/a><\/li>\n <li><a href=\"https:\/\/fa.covna-china.com\/articles\/all\/3.html\">3<\/a><\/li>\n <li><a 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<ul>\n<li> <a href=\"https:\/\/fa.covna-china.com\/\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062e\u0627\u0646\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/products\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u0645\u062d\u0635\u0648\u0644\u0627\u062a<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/page\/about-us.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062f\u0631 \u0628\u0627\u0631\u0647 \u0645\u0627<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/projects\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u067e\u0631\u0648\u0698\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/articles\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u0648\u0628\u0644\u0627\u06af<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/videos\/lives.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u0632\u0646\u062f\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/encyclopedias\/encyclopedia.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062f\u0627\u0646\u0634\u0646\u0627\u0645\u0647<\/a> <\/li>\n <li> <a href=\"https:\/\/fa.covna-china.com\/page\/contact-us.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>\u062a\u0645\u0627\u0633 \u0628\u0627 \u0645\u0627<\/a> <\/li>\n <\/ul>\n<\/div>\n <div class=\"footer-links footer-contact wow fadeInUp\">\n <h3 class=\"ft_title\">\u062a\u0645\u0627\u0633 \u0628\u0627 \u0645\u0627<\/h3>\n <ul>\n<li> <i class=\"fa fa-envelope\"><\/i>\n <p>\u0627\u06cc\u0645\u06cc\u0644:<\/p> <a href=\"mailto:inquiry@covna-china.com\">inquiry@covna-china.com<\/a>\n <\/li>\n <li> <i class=\"fas fa-phone-alt\" style=\"font-size:20px\"><\/i>\n <p>\u062a\u0644\u0641\u0646:<\/p> <a href=\"tel:8613556641138\">+86-1355-6641138<\/a>\n <\/li>\n <li> <i class=\"fas fa-map-marker-alt\" style=\"font-size:20px\"><\/i>\n <p>\u0645\u062d\u0644:<\/p>\n <p>Longchang Micro-Chuangyuan, Dongcheng District Dongguan City, China, 523000<\/p>\n <\/li>\n <\/ul>\n<\/div>\n <div class=\"footer-links footer-form wow fadeInUp\">\n <h3>\u0627\u0634\u062a\u0631\u0627\u06a9<\/h3>\n <p>\u0639\u0636\u0648\u06cc\u062a \u062f\u0631 \u062e\u0628\u0631\u0646\u0627\u0645\u0647 \u0645\u0627 \u0628\u0631\u0627\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u0627\u062e\u0628\u0627\u0631 \u0628\u0647 \u0631\u0648\u0632 \u0634\u062f\u0647 \u0645\u0627!<\/p>\n <form class=\"form-35ae53c76b5ee1daa4a720360e3a6dfd\" action=\"https:\/\/inquiry.digoodcms.com\/api\/covna\" method=\"POST\"> <input name=\"page\" type=\"hidden\" value><input id=\"backpage2\" name=\"backpage\" type=\"hidden\" value><div class=\"input-group\"> <input type=\"text\" name=\"contact[fullname]\" class=\"form-control2\" required placeholder=\"*\u0646\u0627\u0645 \u0634\u0645\u0627\">\n<\/div>\n <div class=\"input-group\"> <input type=\"email\" name=\"email\" class=\"form-control2\" placeholder=\"*\u0627\u06cc\u0645\u06cc\u0644 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class=\"custom-832d79346386d659f3edcd67e774aaf1_zipCode\" name=\"custom[zipCode]\" type=\"hidden\" value><input class=\"custom-832d79346386d659f3edcd67e774aaf1_latitude\" name=\"custom[latitude]\" type=\"hidden\" value><input class=\"custom-832d79346386d659f3edcd67e774aaf1_longitude\" name=\"custom[longitude]\" type=\"hidden\" value><input class=\"custom-832d79346386d659f3edcd67e774aaf1_timeZone\" name=\"custom[timeZone]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_ipAddress\" name=\"geoip[ipAddress]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_countryName\" name=\"geoip[countryName]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_countryCode\" name=\"geoip[countryCode]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_regionName\" name=\"geoip[regionName]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_cityName\" name=\"geoip[cityName]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_zipCode\" name=\"geoip[zipCode]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_latitude\" name=\"geoip[latitude]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_longitude\" name=\"geoip[longitude]\" type=\"hidden\" value><input class=\"geo-048a9bc729417347585bd603346489d1_timeZone\" name=\"geoip[timeZone]\" type=\"hidden\" value><input name=\"useragent[browser]\" type=\"hidden\" value=\"Chrome[86.0.4240.75]\"><input name=\"useragent[platform]\" type=\"hidden\" value=\"Windows 10\"><input name=\"useragent[lang]\" type=\"hidden\" value=\"zh-CN,zh;q=0.9,ja;q=0.8,en-US;q=0.7,en;q=0.6,zh-TW;q=0.5\"><input name=\"useragent[mobile]\" type=\"hidden\" value=\"No\"><input name=\"useragent[agent_string]\" type=\"hidden\" value=\"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/86.0.4240.75 Safari\/537.36\">\n<\/form>\n 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