Engineering
| Tue 27 Oct 2026
Beijing, Oct. 26 -- Tonghua Steel has secured a patent on Split Type Oil Cylinder Connecting Device. Xu Lihuan, Yang Guang, Ren Lixin, Wang Pingyuan, Chiketake, Wang Xunan, Qin Weihai, Di Yadong, Chen Ping, Zhou Xiyan, Sun Dayu and Li Yongqiang developed the invention.
The patent application number is CN202521329124U 20250627..