10538| 14
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为何轴承内径和外径全部都走负公差 |
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点评
那为什么英制轴承走正公差?
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小黑屋|手机版|Archiver|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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