GB/T 12228
GB/T 12228 (General purpose industrial valves - Technical specification for carbon steel forgings)· GB (Chine) · 9 matériaux
| Désignation | Groupe de matériaux | |
|---|---|---|
| 20 | Aciers de construction | chevron_right |
| 25 | Aciers de construction | chevron_right |
| 35 | Aciers de construction | chevron_right |
| A105 | Aciers de construction | chevron_right |
| LF2 Class 1 | Aciers de construction | chevron_right |
| LF2 Class 2 | Aciers de construction | chevron_right |
| LF6 Class 1 | Aciers de construction | chevron_right |
| LF6 Class 2 | Aciers de construction | chevron_right |
| LF6 Class 3 | Aciers de construction | chevron_right |