Security & Protection
| Sat 20 Dec 2025
Beijing, Dec. 20 -- Inner Mongolia Dian Tou Energy and Shenyang Guodian Hongda Safety Tech Co Ltd have been granted a patent for Pump Set Type Refrigerant Liquid Automatic Fire Extinguishing Device. Zhang Haibo, Li Zhongfei, Wang Bo, Hao Jianguo, Zhang Baojiu, Han Wei, Dong Ruirong, Xia Wenjie, Ni Huawei, Zhu Zhiqing, Lu Peng, Z..