12386| 33
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在球體上加工平面,,難難難,求專家,。 |
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點評
看清圖啊,是鋼珠加工,,你用什么刀具干鋼珠,?
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,浙公網安備33038202004372號 )
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