... /C 3.considerate service 4. high quality & competitive price API 5L X42 Steel Pipe MaterialCarbon Steel, Stainless Steel, Alloy Steel, Nickel Alloy Steel ... Welded Steel PipeSpiral Welded Steel Pipe, Hot-rolling Seamless Pipe, Cold-rolling Seamless PipeStandardASTM, DIN, GB, BS, JIS, ASME, API, AISI,, ANSIGradeA333 GR3,GR6A335 P5 ...