GB/T 12227
GB/T 12227 (General purpose industrial valves - Technical specification for ductile iron castings)· GB (中国) · 6 材料
| 名称 | 材料グループ | |
|---|---|---|
| QT 500-7 | 鋳鉄 | chevron_right |
| QT400-15 | 鋳鉄 | chevron_right |
| QT400-18 | 鋳鉄 | chevron_right |
| QT400-18L | 鋳鉄 | chevron_right |
| QT400-18R | 鋳鉄 | chevron_right |
| QT450-10 | 鋳鉄 | chevron_right |