9814| 22
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sw圆管上开斜槽画法咨询 |
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点评
这么画,怎么加工出来?
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点评
正解
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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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