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一种自安装基准等公法线齿轮渐开线样板

Release Time:2019-06-21  Hits:

First Author:凌四营

Disigner of the Invention:王晓东,王立鼎,刘辉,陈义磊,汪训练

Application Number:CN201711393983.X

Authorization Date:2017-12-21

Authorization Number:CN108061651A

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