7872| 21
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關于零件熱處理 |
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點評
滲氮和表面淬火都能滿足的話,那就看經濟條件啦。當然選擇便宜的搞啦。
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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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