GB/T 12226
GB/T 12226 (General purpose industrial valves - Technical specification for gray iron castings)· GB (Chine) · 4 matériaux
| Désignation | Groupe de matériaux | |
|---|---|---|
| HT 200 | Fontes | chevron_right |
| HT 250 | Fontes | chevron_right |
| HT 300 | Fontes | chevron_right |
| HT 350 | Fontes | chevron_right |