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公司有幾臺剪刀叉式升降機,軸承老是損壞,擋圈掉落,外圈也跟著脫落 |
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小黑屋|手機版|Archiver|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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