Construction
| Wed 03 Jun 2026
Beijing, June 3 -- Shandong Hi Speed Engineering Construction Group has applied Chinese patent for Concrete Guardrail Maintenance System. Xu Taixue, Qin Zhihui, Zhuang Caixiang, Yang Chuanhe, Liu Dacheng, Liu Xiaoyang, Ma Yunze, Zhang Daojing, Wang Wei, Liu Fangshuai and Yang Yanna developed it.
The patent application number ..