Enviornmental
| Wed 18 Mar 2026
Beijing, March 18 -- State Intellectual Property Office of China has released Beijing Drainage Equipment patent application for Desanding Integrated Device and Desanding Method. This invention was developed by Ying Meijuan, Li Yan, Li Xiaohui, Wang Zhifeng, Zhang Jiajun, Zhang Heng, Cheng Qing, Gao Baohua, Mu Xiaodong, Guo Yong,..