25941| 35
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先焊接,還是先調質? |
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點評
調質的工藝是先淬火啊, 淬火時焊接處容易裂
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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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