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純機加工的附加值基本為零 |
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點評
小批量加工費肯定高,,一點點的很多機加工都不愿意做的
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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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