Electrical
| Fri 14 Nov 2025
Beijing, Nov. 14 -- Beijing Sifang Eng Co Ltd and Beijing Sifang Automation Co have sought patent for Water-cooled Direct-current Deicing Rectification Power Valve Group. This invention was developed by Li Yan, Zhang Sen, Li Xiang, Zhao Guangna, He Yan, Zhao Zhiyong, Liu Shu, Liu Kun, Zhen Bao, Wei Heming, Xue Xiaojie, Zhang Hui..