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| 传动轴吊架 | |||
| 降落钩; 吊钩; 起落吊钩; 架空传动吊架 | |||
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drop hanger : 5 phrases in 4 subjects |
| Business | 1 |
| Computer numerical control | 1 |
| Metallurgy | 1 |
| Technology | 2 |
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