... bends,pipe caps...Material:Carbon steel,alloy steelStandard:ANSI,ASME,API 5L,DIN,JIS,BS,GB,...Wall Thick:SCH10,SCH20,SCH40, ... STD,SCH80,XS,SCH160Size:1/2"--48"Range of Application:Chemical industry, petroleum industry, construction industry, domestic installationSurface ... the words can ask me Generally we produce three kinds of material pipe polyethylene, polypropylene and aluminum pipe PE-X ...