Security & Protection
| Sat 27 Dec 2025
Beijing, Dec. 27 -- Sinohydro Engineering Bureau 4 has been granted a patent for Magnetic Type Vertical Prism Device for Safety Monitoring. Yu Xuyang, Li Wenchuan, Gu Qiang, Liu Yaowei, Tang Chuanyi, He Zhimin, Wei Fuhong, Hu Hanqing, Chen Lichun, Zhao Yushu, Shen Hongqiang, Li Weiwei, Zhang Yunfei, Liu Xiaolei, Wang Jiahuan, Ma..