Xi'an Linkun Materials Co.,Ltd is one of the leading China blind flanges manufacturers and suppliers,Website: , if you want to buy or import best high-quality blind flanges professional company, factory, seller, and exporter, or if you are checking blind flanges brands, please feel free to contact us.Products:Blind Flange, BL Flange, Size:1/2"-72"Materials:Carbon Steel: ASTM SA/A105(N),C22.8,ST37.2,A516 GR60/70,ASTM SA350 LF2,ASTM SA694 F42/46/52/56/60/65…Stainless Steel: ASTM A182 F304/304L/316/316L…Duplex Stainless Steel: ASTM A182 F51/F53/F55/F60…Alloy Steel:ASTM A182 F1/F5/F9/F11/F22/F91…Surface Treatment:Yellow/Black Coating, Anti-Rust Oil