6318| 17
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材質(zhì)40Cr的鋼板的上下面要求加工到Ra0.8,需要多少工時? |
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點評
即便是精銑也最好可以加工到Ra1.6。粗磨可達(dá)到R0.8。
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點評
龍門磨磨不了700寬的?
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