... A-197, ISO5922, EN1562. 1. Product Item: Pipe Fittings, Malleable Iron Pipe Fittings (elbows, tees, sockets, bends, nipples, unions ... galvanized, all be antirust treatment. 6. Pipe Fitting Usage: Suitable for joining pipe lines of water, gas, oil, air. Concentric ... ribs Connection: Female Type: Coupling Technics: Casting, malleable Pipe Fitting Surface finishing: Black, Hot dipped galvanized, Electrical ...