Transportation
| Sun 28 Jun 2026
Beijing, June 29 -- China Railway Xi'an Group Co Ltd has submitted a patent application for Power Frequency Withstand Voltage Test Device and Test Method Thereof. This invention was developed by Dai Bin, Song Lin, Xu Yule, Su Weiyi, Li Xu, Yang Weidang, Jiao Dong, Guo Rui, Cai Pengfei, Zhu Lixuan, Li Xin, Liu Jintang, Chang Ting..