ERW API 5l steel pipe Manufacture OD:48.3---610mm Thickness: ... roll steel pipe, Double-side buried arc spiral welded pipes, ERW pipe, SSAW pipe. etc.We would like to take this ... :10#, 20#, 16MN, Q295API Welded Steel Pipe For LSAW SSAW ERW 1. Steel Pipes (LSAW) OD: 457 - 1, 220mm (18 - 48 ... .1-1997, GB/T5037-2001, GB/T5040 material:16MN, Q2953. ERW Steel Pipe. Oil casing pipes: OD: 219.1 - 609.6mm ...