如果精度要求很高，就先镗，后珩。
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- M1 u6 T/ R0 s7 O' q1 A, O6 {8 sHTT, founded in 1997, is becoming the leader of deep hole drilling solution in the world.Machine building factories established in both Germany and China, and over 20 manufacturing units for Job-drilling and machine service in Germany, USA, China and India.Effective service can be provided in short time.
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楼主: 快乐的小龙1975
发表于 2014-7-26 09:18:51
