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最近我司為一德國公司制做搖擺軸承的樣品,表面粗糙度無論怎么做都不達標 |
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Archiver|手機版|小黑屋|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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