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給力的深孔鉆,。。,。,。 |
點評
不是的,照片上是ht200,,但是我們加工過42CrMo,,調(diào)質(zhì)過的合金鋼哦
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點評
我查了一下采購單,直徑8mm的四千多rmb,。17的兩千多rmb
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點評
要是鉆頭斷在里面怎么辦呢?
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