Steel Pipes, Flange, Pipe Spool manufacturer / supplier in China, offering DIN Black Carbon Steel API5l X42 45 Degree Pipe Fitting Butt Weld Stainless Steel Bend, DIN Anti-Corrosion Coated Foam Seamless Carbon Steel Pipe 3lpe Bevel End Pipe Oil Pipes, 3lpe Straight Seam Welded Pipe API 12m Length LSAW S235j2h Pipe Anti-Corrosion Pipe and so on.