... to convey gas,water,and oil. Galvanized Water Malleable Iron Pipe Fittings:1.standard: EN10242,ISO7-1 ,NPT 2. ... UL5. Brand: O Product Itemcast iron pipe fitting : elbows, tees, sockets, bends, nipples, unions, crosses, flanges, plugs, backnuts, crosses over, ... angles, good antirust propertyProduct UsageSuitable for joining pipe lines of team, gas, oil, air Galvanized Water Malleable Iron Pipe Fittings