短語詞組短語bottom centering jaw 下定中爪top -centering jaw 上定中爪top centering jaw 上定中爪self -centering three-jaw chuck 自定心三爪卡磐jaw centering 定中爪three -jaw centering agencies 三爪定心機搆Jaw Self Centering Chuck VSC -SERIES 經(jīng)濟型普通三爪夾頭 返回 centering jaw