Pipe
| Fri 13 Nov 2026
Beijing, Nov. 13 -- Sun Xiaogang has received a patent for Dredging Device for Drainage Pipeline of Building Bridge. This invention was developed by Lee Young-wook, Dai Le, Tian Wei, Ma Jingran, Zhu Wenjing, Qi Yaning, Li Xiuxin, Yan Congcong, Sun Xiaogang and Yuan Qing.
The patent application number is CN202520709100U 202504..