Transportation
| Wed 01 Apr 2026
Beijing, April 1 -- China Railway No. 2 Group and China Railway Erju 5th Eng Co Ltd have sought patent for Slag Tapping System and Method in Skewback Hole. This invention was developed by Chen Liang, Lei Liang, Li Xuewen, Chu Miao, He Wenjun, Zhang Haibo, Hu Guangquan, Zhang Jingbin, Wang Xiong, Wang Furui, Liu Yang, Zeng Haoluo..