5680| 10
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發(fā)動機缸蓋氣門導管孔的加工,,求理想壽命和刀具材質(zhì) |
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能否提供具體案例,?
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版主有相應案例嗎,?我用過金屬陶瓷干過粉末冶金,車削,。推薦過金剛石,,客戶嫌貴,哈哈,。
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