5)EN10083
4)ASTM A519
3)GB18248
1) Gas cylinder pipe and tube
2) 34CrMo4, 35CrMo,37Mn
1) Gas cylinders pipe and tube
2) 34CrMo4, 35CrMo
3)GB18248 ASTM A519 EN10083 etc
try gas cylinder to get through more products
Payment Terms: | L/C,T/T |
Certification: | API 5L ISO9001 CE |
Certification: | CE |