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| 开坯机轧辊; 粗〔开坯〕轧辊; 初轧机轧辊 | |||
| 开坯轧辊 | |||
| 粗轧辊 | |||
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cogging roll : 5 phrases in 2 subjects |
| Metallurgy | 4 |
| Steel production | 1 |
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