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最近幫客戶搞了臺機(jī)子為一件產(chǎn)品打批量小孔,請大家看看此產(chǎn)品用處 |
點評
說實話,超硬鉆頭會不會被末子直接搞斷�,。扛悴粩嗄蔷葧粫绊�,?我以前用超硬的鉆頭只打硬度高,,淬火后的產(chǎn)品,對于材質(zhì)軟的產(chǎn)品很容易斷鉆頭,。
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