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property=\"og:description\" content=\"Manual Knife Gate Valve Stainless Steel Lug Type Handwheel Industrial Slurry Wastewater Corrosion Resistant Bi-Directional Cut-off Flow Control DN50-DN1200 Heavy Duty\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cnkazev.com\/zh\/product\/manual-handwheel-knife-gate-valve-lug-stainless-steel-slurry-wastewater-bi-directional-corrosion-resistant-flow-cutoff\/\" \/>\n<meta property=\"og:site_name\" content=\"Kazev Valve\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-30T13:05:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cnkazev.com\/wp-content\/uploads\/2026\/07\/Manual-knife-gate-valve.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" 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