Engineering
| Mon 05 Jan 2026
Beijing, Jan. 6 -- Dongfang Turbine, Dongfang Electric has sought patent for Double-valve-cover Packing Valve Rod Sealing Method and Device. This invention was developed by Ni Jian, Qiu Jian, Fan Xiaoping, Song Fangfang, Qian Yong, Liu Haijie, Yang Chunyu, Tian Ruiqing, Zhang Fen, Zhou Yong, Liao Jianxin, Chen Fu, Li Qiang and F..