13950| 14
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請問 40cr 調(diào)質(zhì)硬度在HRC32-36,還可以機加工嗎? |
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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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