... . Product Item: Malleable Iron Pipe Fittings(elbows, tees, sockets, bends, nipples, unions, crosses, flanges, plugs, backnuts, crosses over, round caps, etc. ) 2. Thread ... Dipped Galvanized, all be antirust treatment. 6. Product Usage: Suitable for joining pipe lines of team, gas, oil, air. Concentric Reducing Cocket ...