Security & Protection
| Tue 20 Jan 2026
Beijing, Jan. 21 -- Shandong Wangrui Products Co Ltd has submitted a patent application for Automobile Fire Extinguishing Device. This invention was developed by Meng Changming, Sheng Guangfu, Yang Fan, Li Hongzuo, Liu Chunhui, Liu Dawei, Zhu Jie, Wang Guangqing, Sun Shuqi, Liu Ning, Lu Hao, Liu Dan, Liu Jie, Li Jian, Liu Zhengp..