Steel
| Tue 12 May 2026
Beijing, May 13 -- Shougang Group has filed a patent application for Manufacturing Method of Gear Steel for Cold Forging Machining. This invention was developed by Chao Yuelin, Zhou Yuli, Zhou Hanghang, Sun Qisong, Xu Shixin, Chen Tao, Yang Jieming, Liu Houquan, Zhang Xiaobo, Yuan Shunjin, Tu Xiangpin and Xiong Jiaze.
The paten..