... pipe include carbon steel seamless pipe, seamless roll steel pipe, Double-side buried arc spiral welded pipes, ERW pipe, SSAW pipe. ... our products range as below:1.Seamless Roll Steel PipeOD:21.3-219.1mmTHK:2. ... SPEC 5Lmaterial:10#, 20#, 16MN, Q295API Welded Steel Pipe For LSAW SSAW ERW 1. Steel Pipes (LSAW) ... 5L, API 5CT, ASTM material:16MN, Q2952. SSAW Steel Pipe OD: 219.1 - 4064mm (8" - 160") THK: ...