NBR 13709
NBR 13709 (Aircraft - Cr-Ni-Mo 4340 steel bars - Specification)· NBR (Brazil) · 1 materials
| Designation | Material group | |
|---|---|---|
| 4340 | Structural and constructional steels | chevron_right |
NBR 13709 (Aircraft - Cr-Ni-Mo 4340 steel bars - Specification)· NBR (Brazil) · 1 materials
| Designation | Material group | |
|---|---|---|
| 4340 | Structural and constructional steels | chevron_right |