6613| 15
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如何保證槽底粗糙度Ra1.6 |
點評
還有火花加工
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點評
設備達不到,人工上也能,模具表面那高要求,不都人工打出來的
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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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