Information Technology
| Mon 18 May 2026
Beijing, May 18 -- Huaneng Yunnan Diandong Energy has applied Chinese patent for Downhole Grouting Mechanism Convenient to Install. Zhan Benyong, Wang Rong, Cao Yunfei, Nie Dengqi, Sai Yongjiu, Du Wenjiang, Li Qian, Duan Huandong, Wu Ben, Gu Yanqiang, Xiao Yunzhi and Wang Zhengxiong developed it.
The patent application number..