Security & Protection
| Wed 05 Aug 2026
Beijing, Aug. 6 -- Hunan Provincial Communications Planning, Survey and Design Institute has been awarded a patent for Ship Lock Miter Gate Top Pivot Cover Plate System. This invention was developed by Li Chaojun, Ye Yasi, Xu Jiguang, Tao Zhengwen, Wang Ding, Zhang Wenkan, Ma Xingjia, Tang Shirong, Xie Yutang, Wu Chaoqian, Guo Y..