STAS 323
STAS 323 (Equipment for petroleum industries. Drill-pipes and couplings)· STAS (Romania) · 2 materials
| Designation | Material group | |
|---|---|---|
| 43 MoMn 16 | Structural and constructional steels | chevron_right |
| OLT 65 | Structural and constructional steels | chevron_right |