3404| 8
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關于鑄鋼的熱處理一系列問題 |
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點評
去除應力,低碳鋼用退火,高碳鋼用正火。
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小黑屋|手機版|Archiver|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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