17693| 6
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絲錐是什么材質(zhì)的,?硬度是多少,?消耗的絲錐如何再利用? |
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點(diǎn)評(píng)
由于手用切削速度不高一般是用合金工具鋼,,如:9SiCr、GCr15,也有用碳素工具鋼的,。另外有些手用絲錐不是磨牙的,,基本上是沒(méi)法使用,最好手用時(shí)也選擇機(jī)用絲錐
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