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| ф3００～ф650dual-axis gear seat with constant speed |
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| ф260～360*4transmission equipments for continuous rolling mills |
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| ф3００～ф5００three-axis synchronous herringbone gear seat (pre-stress shutoff) |
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| ф250～ф550transmission equipments for dual continuous rolling mill |
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| associated gear box with synchronous deceleration |
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