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| плоский приварной фланец | |||
| приварной охватывающий фланец | |||
| посадочный фланец | |||
| накидной фланец | |||
| 平 焊法兰: 5 phrases in 3 subjects |
| General | 1 |
| Mechanic engineering | 2 |
| Technology | 2 |
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