Steel
| Thu 12 Nov 2026
Beijing, Nov. 11 -- Chengde Jianlong Special Steel has applied Chinese patent for Machining Method of Mncr Gear Steel, Gear Steel, Gear and Terminal Product. Bao Yongrui, Du Chao, Zheng Xinwei, Zhang Fan, Jiang Caiyan, Wang Zhili, Shang Yantao, Leng Yonglei, Zhang Bai and Ma Xuefeng developed it.
The patent application number..