GB/T 12227
GB/T 12227 (General purpose industrial valves - Technical specification for ductile iron castings)· GB (Chiny) · 6 materiałów
| Oznaczenie | Grupa materiałowa | |
|---|---|---|
| QT 500-7 | Żeliwa | chevron_right |
| QT400-15 | Żeliwa | chevron_right |
| QT400-18 | Żeliwa | chevron_right |
| QT400-18L | Żeliwa | chevron_right |
| QT400-18R | Żeliwa | chevron_right |
| QT450-10 | Żeliwa | chevron_right |