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一种成品高速钢刀具周期式深冷处理工艺

Release Time:2019-10-09  Hits:

First Author: 段春争

Disigner of the Invention: Minjie wang,蔡玉俊,李士燕

Application Number: CN200910307433.0

Authorization Date: 2009-09-22

Authorization Number: CN101660031

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