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| 舌形组合模; 带切断器的组合模; 带芯棒的组合模; 空心件〔桥式孔型〕挤压模 | |||
| 空心件挤压模; 桥式孔形挤压模 | |||
| bridge die: 7 phrases in 1 subject |
| Metallurgy | 7 |
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