Tools and Machinery
| Wed 19 Nov 2025
Beijing, Nov. 20 -- Nanjing Hydraulic Research Institute has sought patent for Rapid Taking-out Device for Cutting Ring. This invention was developed by Cui Mida, Lu Jun, Zang Deji, Fan Xiangqian, Ming Pan, Ma Guangjun, Li Huanlun, Sun Changle, Yu Jiang, Dong Maogan, Wei Wei, Yuan Shubin, He Yawen, Li Youcai and Li Lei.
The p..