Steel
| Thu 06 Aug 2026
Beijing, Aug. 6 -- Yalong River Hydropower Development has been awarded a patent for High-pressure Hydraulic Ball Valve Locking Device. This invention was developed by Wang Jun, Wang Xiaguang, Xiang Xinxin, Xing Erxin, Shi Ruolin, Li Qian, Li Qiang, Zhao Peng, Xiang Gui, Zhu Bao and He Jichun.
The patent application number is..