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一种基准级齿轮螺旋线样板

Release Time:2019-09-16  Hits:

First Author: 凌四营

Disigner of the Invention: 王立鼎,陈义磊,于宝地,张慧阳,娄志峰

Application Number: CN201811078252.0

Authorization Date: 2018-09-17

Authorization Number: CN109186511A

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