Defense
| Wed 28 Oct 2026
Beijing, Oct. 27 -- Shandong Jinhengli Construction Co Ltd has filed a patent application for Intelligent Control System for Backfill Complete Equipment of Early Civil Air Defense Project. This invention was developed by Liu Lei, Zhang Jingzhen, Wang Zihan, Yang Chao, Wang Jiali, Dong Peng, Li Xing, Zhang Guofeng, An Ming, Zhang..