Enviornmental
| Thu 05 Feb 2026
Beijing, Feb. 5 -- China Railway 18th Bureau Group has submitted a patent application for Sewage Submersible Pump Capable of Preventing Reverse Rotation of Impeller. Miao Bin, Liu Yanbin, Meng Xiangyi, Li Tiefeng, Yang Zhiguo, Xue Yongqing, Gao Xinhai, Zhang Lin, Lei Wanyun, Jiang Guangwen and Xu Xiaofeng developed the invention..