4048| 10
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此工件如何加工? |
点评
外圆需要光一刀吗?没开过车床,硬伤啊、、
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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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