Forging Flange Alloy Steel Welding Neck Flange (ZH-309) Shanghai Z&H Hardware Co., Ltd. Base Info Model NO.:ZH-309Standard:ANSI, GBType:Welding FlangeMaterial:Carbon Steel, Stainless Steel, Alloy SteelManufacturing Way:ForgingName:Welding Neck FlangeModel Number:Zh-309Origin:Shanghai, China Description Pre:20-22mm T-Bolt Hose Unitary Clamps Zinc Plated Steel Adjustable Heavy Duty Tube Ear Clamp Next:26-28mm T-Bolt Hose Unitary Clamps Zinc Plated Steel Adjustable Heavy Duty Tube Ear Clamp