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