ASTM A234 Wpb Carbon Steel Butt Welding Tee/Reducer/Elbow Shanxi Shuanglin Forging Co. Ltd Base Info Model NO.:forgedStandard:DIN, ANSI, GB, JIS, BSW, AwwaMaterial:Stainless SteelConnection:Welding Description Pre:Silicone Rubber Gasket-3 Next:DIN CS Ss Alloy Steel Threaded Flange