Security & Protection
| Sun 27 Oct 2024
Beijing, Oct. 28 -- Hebei Anyuhong Doors and Windows has secured a patent on outward opening type fireproof window. Zhao Yue, Meng Qingshuang, Gao Mingliang, Xu Dong, Li Baotai, Wang Haichen, Xia Daohan, Wang Ying, Fan Qingyu, Liu Zhenling and Zhang Xuenan developed the invention.
The patent application number is CN2023214640..