3749| 3
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什么样的设备能加工1200毫米深直径6粗糙度3.2,位置度0.5的深孔 |
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Archiver|手机版|小黑屋|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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