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7毫米內(nèi)孔,,鏡面效果,,如何加工 |
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點(diǎn)評
您也認(rèn)為是先慢走絲,,再研磨,?還是覺得這個方法不行?
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氮化以后才達(dá)到這個硬度,,前期開孔加工硬度不高
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點(diǎn)評
內(nèi)孔是5繆精度
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點(diǎn)評
感謝感謝
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