1.malleable iron 2.beaded and banded 3.light series and heavy series 4.have kind of pipe fitting and come from our ... factory All Kinds Malleable Iron Pipe FittingMaterial: malleable ironSize:1/2 ... beaded ,banded elbow, tee, nipple, socket, cap, plug, nut, flange, union, bushing, cross,welding pipe fitting,carbon steelEvery product pass serious test ...