Electrical
| Sat 13 Sep 2025
Beijing, Sept. 13 -- State Intellectual Property Office of China has received Honghe Power Supply Bureau of Yunnan Power Grid patent application for Ring Main Unit DTU. Wang Rongping, Yang Chen, Zhao Bao, Ding Yi, Shu Heping, Chen Yang, Dai Hongbo, Yu Yan, Yan Ningxia, Ma Shuchen, Pu Renbang, Lu Chong, Wang Sijie, Wei Junjie, Da..