5206| 12
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轧机中间辊、工作辊轴轴承问题 |
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点评
但是实体的铜保持架应该比冲压的刚保持架强度要高呀
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小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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