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| 击入式管子引鞋 | |||
| 导入靴 | |||
| 打入管下端引鞋; 桩靴 | |||
| 管靴; 打入靴; 卡箍; 套筒靴; 套管管靴 | |||
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| 套筒靴 | |||
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drive shoe : 8 phrases in 3 subjects |
| Drilling | 2 |
| Oil / petroleum | 2 |
| Technology | 4 |
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