... pipe(ERW) size:OD: 25.4-508mm,wallthickness 1.5-20mm 2)standard ASTM A 53/ A 106, BS 1387,API 5L ... ,GB,JIS,DIN 1)welded round pipe(ERW) size:OD: 25.4-508mm,wallthickness ... 1.5-20mm2)standardASTM A 53/ A 106, BS 1387,API 5L,GB, ... JIS,DIN3)Grades Q195-Q345, and any grades in ASTM,API,BS,JIS,DIN4)packing, ...