Construction
| Wed 26 Nov 2025
Beijing, Nov. 27 -- China Railway Construction Engineering Group and The 1st Construction of China Railway Construction Engineering Group have been granted a patent for Building Cleaning Robot. Jin Zeliang, Fan Dapeng, Zhang Xu, Xie Qing, Wang Bin, Di Fanghua, Sun Haoran, Zhang Kai, Du Kunpeng, Wang Chao, Chen Mingfei, Fan Yuxua..