12973| 28
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直徑0.01~0.02的孔,要怎么加工? |
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點評
放電間隙都不止了吧?
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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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