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(3)精加工是要大前角(這樣更鋒利)么?;(5)大前角,鋒利,剛度差,應該用小... |
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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