Transportation
| Fri 18 Sep 2026
Beijing, Sept. 18 -- Xi'an Railway Engineering of China Railway 7th Group has received a patent for Pump Pipe Reinforcing and Damping Device. This invention was developed by Li Jian, Qiu Daozhan, Wang Jixiang, Zhang Shengwu, Zhang Longhui, An Jia, Niu Mingxiang, Li Yi, Du Changhong, Li Yuan, Li Guanghui, Li Dan, Huang Hao and Li..