Steel
| Mon 04 May 2026
Beijing, May 4 -- Maanshan Iron & Steel has applied Chinese patent for Spring Steel and Production Method and Heat Treatment Method Thereof. Jiang Ting, Wang Kaizhong, Yin Defu, Hu Fangzhong, Li Shuang, Hao Jie, Wang Taitai, Zhang Xiaorui, Xie Zhaoyuan, Gong Mengqiang and Zhang Yishun developed it.
The patent application number..