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直径约30的弹簧疏端和密端相差0.3~0.5mm,请大家出些方案如何可靠的识别出来 |
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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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