Construction
| Mon 17 Aug 2026
Beijing, Aug. 17 -- Chinese Patent for Bridge Concrete Guardrail Maintenance Trolley has been issued to Hangzhou Traffic Engineering Group. This invention was developed by He Lei, Li Jianqiang, Liu Xiaojie, Tang Xinliang, Zhang Lifang, Shen Xiaolei, Wen Daiquan, Liu Qi, Liao Xia, Shi Hongyan, Yin Chuanji, Liao Qiang, Guo Junwei ..