... A-197, ISO5922, EN1562. 1. Product Item: Pipe Fittings, Malleable Iron Pipe Fittings (elbows, tees, sockets, bends, nipples, ... Thread Standard: British standard, American standard & DIN 3. Pipe Fittings Material: According with GB/T9440 malleable iron, ASTM A ... : Reducing with/without ribs Connection: Female Type: Coupling Technics: Casting, malleable Pipe Fitting Surface finishing: Black, Hot dipped ...