welded steel pipes

welded steel pipe
OD: 6-1500 mm
Thickness:2-200mm
standare:GB/DIN/API
material:10#--45#/16Mn/Q235/Q195/Q215
welded steel pipe/welded pipe/welded tube / steel tube

OD:
6-150mm
Thickness:
2-200mm
standare:
GB/DIN/API
material:
10#--45#/16Mn/Q235/Q195/Q215