... , ASTM A-197, ISO5922, EN1562. 1. Product Item: Pipe Fittings, Malleable Iron Pipe Fittings (elbows, tees, sockets, bends, nipples, unions, crosses, ... 2. Thread Standard: British standard, American standard & DIN 3. Pipe Fittings Material: According with GB/T9440 malleable iron, ASTM A-197 ... , ISO5922, EN1562. 4. Pipe Fittings Specification: Size is from 1/8 to 6 inches. ...