Steel Pipes, Pipes Fittings, Socket Fittings manufacturer / supplier in China, offering Black Painting Carbon Steel Wpb B16.9 Reducer Concentric, A733 A106 Gr. B 2" Sch40 Seamless Black Steel Nipple, BSPT Fully Threaded 304 Nipple 304L Stainless Steel Threaded Pipe Nipple and so on.