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| муфта для соединения труб | |||
| штуцерная втулка | |||
| соединительный рукав; соединительная муфта; переходная втулка; промежуточная муфта | |||
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| ответвительная муфта | |||
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连 接套管 : 36 phrases in 7 subjects |
| Electronics | 8 |
| General | 9 |
| Information technology | 1 |
| Oil processing plants | 3 |
| Pipelines | 1 |
| Sakhalin | 1 |
| Technology | 13 |
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