3180| 8
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關(guān)于鑄鋼的熱處理一系列問題 |
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評分
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點評
去除應(yīng)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(qū) ( 京ICP備10217105號-1,京ICP證050210號,,浙公網(wǎng)安備33038202004372號 )
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