Transportation
| Sat 10 Oct 2026
Beijing, Oct. 10 -- China Railway Siyuan Survey and Design Group has been granted a patent for Railway Bridge Expansion Device. Wang Xinguo, Yan Aiguo, Wen Wangqing, Nie Lifang, Chen Xiaohui, Yang Dewang, Zhang Kaidong, Yin Pengcheng, Zhou Ji, Wang Zhiping, Zhao Ziyue, Wu Qilin and Cai Chang developed the invention.
The patent ..