薄壁金属钣金构件的无法兰边成形
Date:2021-09-09 Hits:
First Author:hezhubin
Disigner of the Invention:陈豪宇,张蓓佳,梁江凯,linyanli,孔朋,王志彪,yuanshijian
Application Number:202010249493.8
Authorization Date:2020-04-01
Authorization number:ZL 202010249493.8
Authorization Date:2020-04-01