GB/T 3414
GB/T 3414 (Hot-rolled profiled steels for coal mechanism)· GB (China) · 3 materials
| Designation | Material group | |
|---|---|---|
| M510 | Structural and constructional steels | chevron_right |
| M540 | Structural and constructional steels | chevron_right |
| M565 | Structural and constructional steels | chevron_right |