... /C 3.considerate service 4. high quality & competitive price API 5L X42 Steel Pipe MaterialCarbon Steel, Stainless Steel, Alloy Steel, ... Super Duplex SteelSteel Pipe TypeSeamless Steel Pipe, Welded Steel Pipe, LSAW, SSAW, Galvanized Steel Pipe, Electric-resistance Welded Steel Pipe ... A106(B,C), 45#, API J55, API K55, St52, Q215, API N80, St37, API L80, API P110, St42, St45, St52.4API 5L A, B, X42, ...