Beauty & Fashion
| Thu 17 Sep 2026
Beijing, Sept. 17 -- Lankao Yellow River Bureau Kaifeng Yellow River Bureau has been granted a patent for Dredging Device for Water Conservancy Project. This invention was developed by Shi Dongxiang, Li Guangjie, Zhang Jianguo, Zhang Chuntian, Wang Anjun, Liu Yachuo, Dun Jianyong, Ma Shaoping, Wang Yanping and Hu Jun.
The paten..