GB/T 28417
GB/T 28417 (Carbon bearing steel)· GB (China) · 3 materials
| Designation | Material group | |
|---|---|---|
| G55 | Structural and constructional steels | chevron_right |
| G55Mn | Structural and constructional steels | chevron_right |
| G70Mn | Structural and constructional steels | chevron_right |