Standard |
Steel Grade |
|
|||
JIS_G3116 |
SG365 |
|
|||
GB6653 |
HP235 |
HP345 |
|||
BQB321 |
B440HP |
B490HP |
|
|
|
Tel: 0086-371-86151827
E-Mail: [email protected]
Address: Xicheng Science & Technology Building High-tech Development Zone, Zhengzhou, China