GB/T 12227
GB/T 12227 (General purpose industrial valves - Technical specification for ductile iron castings)· GB (Cina) · 6 materiali
| Designazione | Gruppo di materiali | |
|---|---|---|
| QT 500-7 | Ghise | chevron_right |
| QT400-15 | Ghise | chevron_right |
| QT400-18 | Ghise | chevron_right |
| QT400-18L | Ghise | chevron_right |
| QT400-18R | Ghise | chevron_right |
| QT450-10 | Ghise | chevron_right |