... A-197, ISO5922, EN1562. 1. Product Item: Pipe Fittings, Malleable Iron Pipe Fittings (elbows, tees, sockets, bends, nipples, unions, crosses ... & DIN 3. Pipe Fittings Material: According with GB/T9440 malleable iron, ASTM A-197, ISO5922, EN1562. 4. Pipe Fittings Specification ... : 1/8"-6" Color: White or Black Material: Malleable Iron Head Code: Circular, Square, Hexagon Shape: Reducing with/without ribs ...