4027| 4
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轴承型号,22219ES S代表什么? |
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点评
大侠,轴承精度与游隙有没有固定的对应关系?
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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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