Tools and Machinery
| Tue 19 May 2026
Beijing, May 19 -- Nujiang Power Supply Bureau of Yunnan Power Grid has sought patent for Blocking Operation Device and System. This invention was developed by Bai Wenlong, Feng Jianhui, Peng Qinyu, Ou Jianhong, Kong Biguang, Lyu Weijiang, Wang Xiaohu, Zhang Tiebin, Geng Zuoxue, Xu Zhengguo, Li Tao, Yang Wenyi, Chen Xing, Yang X..