Flange Alloy Steel Casting Flange Welding Flange (ZH-322) Shanghai Z&H Hardware Co., Ltd. Base Info Model NO.:ZH-322Standard:ANSI, GBType:Welding FlangeMaterial:Alloy SteelManufacturing Way:CastingProduct Name:Welding FlangeModel Number:Zh-322Origin:Shanghai, China Description Pre:Blind Flange Stainless Steel Welding Flange (ZH-320) Next:Dni1400 Carbon Steel Flat Welding Flange (ZH-323)