Sanitation
| Tue 06 Oct 2026
Beijing, Oct. 6 -- Norendar International has been granted a patent for Anti-blocking Constructed Wetland Cleaning System. Hou Chenglin, Li Hongrui, Liu Qi, Wang Limiao, Chen Zhenqian, Ren Cuijuan, Zheng Yuxiang, Cao Fang, Zhang Jie, Wang Hao, Yang Hong, Wang Xiaoqian and Gao Tianci developed the invention.
The patent applica..