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| |||
| valve casing | |||
| valve case; valve cage | |||
| valve body; valve housing | |||
| clack for shell | |||
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阀壳 : 15 phrases in 7 subjects |
| Drilling | 1 |
| Electronics | 3 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 7 |
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