... .11 3Size :1/8'--6' Malleable cast iron pipe fittings 1. Product Item: Pipe Fittings, Malleable Iron Pipe Fittings (elbows, tees, sockets, bends ... & DIN 3. Pipe Fittings Material: According with GB/T9440 malleable iron, ASTM A-197, ISO5922, EN1562. 4. Pipe Fittings Specification: ... galvanized, all be antirust treatment. 6. Pipe Fitting Usage: Suitable for joining pipe lines of water, gas, oil, air.