Products DetailsWenzhou Yuzheng Valve Pipe-Fitting Co.,Ltd is one of the leading China carbon steel weld neck flange manufacturers,Website:http://www.yz-valves.com, welcome to wholesale cheap carbon steel weld neck flange from our professional factory.Carbon Steel  Weld Neck FlangeFeature:Name: Carbon Steel Weld Neck FlangeType: Weld Neck FlangeMaterials: ASTM A182, Carbon SteelGrades: F11, F22Standards: GOST 12821, GOST 12822. Pressure: 900LB (PN150). Sizes: 1/2-24 Inch (DN15-DN600)