Construction
| Wed 01 Apr 2026
Beijing, April 1 -- State Intellectual Property Office of China has released Shanxin New Material Tech Guangdong Hengqin Co Ltd patent application for Fireproof Door. This invention was developed by Xie Huiyuan, Liu Dongchun, Chen Yan, Kong Fanqiang, Zhao Hailiang, Yang Chuqing, Wu Qiong, Hou Chuncheng, Li Dongmei, Wang Bixiang,..