Entertainment
| Fri 16 May 2025
Beijing, May 16 -- State Intellectual Property Office of China has awarded a patent to Guoyang Sanzhi Casting Tech Co Ltd for casting forming device for brake drum of drum brake. Zhang Dongming, Zhang Huanxin, Chen Jiale, Dong Chuanhong, Jiang Luyang, Wang Shaohua, Gao Lei, Xu Xiang and Mu Qiang developed the invention.
The p..