Security & Protection
| Sat 07 Feb 2026
Beijing, Feb. 7 -- Guangzhou Metro Group has secured a patent on Contact Rail Protective Cover Cleaning Device. Su Zhuoliang, Yu Zhan, Pang Bo, Xie Yangchun, Wu Chaoliang, Gong Wen, Deng Zhiling, Li Fei, Huang Guangwen, He Zifeng, Yang Guowei, Chen Shanjian, He Weihang, Yao Weijie and Zheng Zebin developed the invention.
The pa..