Sanitation
| Thu 09 Jul 2026
Beijing, July 9 -- The First Co Of China Eighth Engineering Bureau Ltd has submitted a patent application for Automatic Scabbling and Cleaning Device for Water Stopping Ridge of Water Room. This invention was developed by Yuan Zhuang, Li Hu, Su Zhengyu, Yuan Sen, Xie Can, Wu Yinghao, Yue Changfan, Wang Tao, Li Xiangzhao and Zhan..