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| 中心锁销式吊卡; 对开扣合式吊卡; 牛头吊卡 | |||
| 中开闩吊卡 | |||
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| 中心插销吊卡 (堆开式) | |||
| center latch elevator: 1 phrase in 1 subject |
| Drilling | 1 |
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