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什么樣的設備能加工1200毫米深直徑6粗糙度3.2,位置度0.5的深孔 |
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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