Construction
| Tue 25 Nov 2025
Beijing, Nov. 25 -- State Intellectual Property Office of China has awarded a patent to China Construction Third Bureau Yuncai Supply Chain Co Ltd for Protective Mesh Fixing Device for Air Shaft Opening. Wang Meng, Ran Yusheng, Xu Deyuan, Feng Guangyu, Du Zhaoming, Wang Yu, Chang Xiaoyang, Cai Daihua, Cheng Qian, Li Ke and Peng ..