The original guide fittings, which fixedly combined with the rolling mill, because of long drive chain and many fixed points, usually become flexible and seizing, bring on rolling accident.
由于导卫装置采用传统连接方式与轧机紧固一体，因传动链长、固定支点多，在生产中经常出现松动、卡死等现象，诱发轧制事故。
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