5796| 24
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熱變形問題 |
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點評
材質是45號鋼,調質處理硬度28hrc
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點評
大俠,這個外面有夾緊的,還是向外嗎?
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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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