3932| 7
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ZG40Gr25Ni20,這種材質好銑槽么? |
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點評
可以查一下各自的硬度。參考硬度參數比較重要。
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Archiver|手機版|小黑屋|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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