Construction
| Wed 08 Jul 2026
Beijing, July 8 -- China Railway Construction Group has submitted a patent application for Fireproof Isolation Cavity for High Area and Low Area. This invention was developed by Li Jianxiong, Li Hailong, Zhao Cong, Ni Xiaodong, Chen Dongdong, Zhao Jianfeng, Kang Zhenqin, Zhang Kuijie, Li Di, Yang Qili, Wang Yaqing, Liu Huaiyu, L..