一种管材任意方向的厚向异性系数和屈服应力测定方法
Date:2021-09-09 Hits:
First Author:yuanshijian
Disigner of the Invention:hezhubin,张坤,linyanli
Application Number:201911186245.7
Authorization Date:2019-11-28
Authorization number:ZL 201911186245.7
Authorization Date:2019-11-28