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想在上海建個做小零件的精密加工廠,請教 |
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點評
看來你自己對機械加工工藝一點都不懂。
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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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