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齿轮定量冷精挤加工方法

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First Author:jiazhenyuan

Disigner of the Invention:Dongming Guo,纪洪军,孙宝元,王铿,qianmin,杨玉民,zhaofuling

Application Number:CN99111820.0

Authorization Date:1999-07-23

Authorization number:CN1281760

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