8647| 24
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請(qǐng)教鉆小孔問(wèn)題 |
評(píng)分
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點(diǎn)評(píng)
切削參數(shù)呢?
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點(diǎn)評(píng)
贊同,如果量不大直接穿孔機(jī)做一下好了,經(jīng)濟(jì)實(shí)惠
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點(diǎn)評(píng)
含鈷的不銹鋼專(zhuān)用鉆頭
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