- Welded steel pipes
- 2017-01-16 23:46
- 16Mn,OD: 159mm-3020mm,Wall Thickness: 6mm-20mm,Standard:GB/T9711?SY/T5040?API SPEC 5L?ASTM A252
- seamless steel pipes
- 2017-01-16 23:45
- SSAW steel pipe standards: API 5L, GB9711material: 16 MnOD: 159mm-3020mm,Wall thickness:6mm-20mm,Can be processed accord