Transportation
| Fri 24 Apr 2026
Beijing, April 24 -- China Railway First Group Electrical Engineering has filed a patent application for Subway Contact Line Abrasion Laser Detection Machine. This invention was developed by Han Mingxue, Chen Shuai, Zuo Chuanwen, He Fei, Yang Wen, Wu Huihuo, Fan Gang, Wang Bao, Li Wanshan, Zhou Hailong, Min Yuliang, Zheng Pengfe..