Enviornmental
| Sat 01 Aug 2026
Beijing, Aug. 1 -- Yankuang Energy Group has sought patent for Secondary Cyclone Dust Removal Equipment for Underground Air Purification. This invention was developed by Feng Ran, Guo Bingchi, Wang Chengcheng, Li Lili, Wang Yadong, Li Haizhou, Han Jizi, Li Minghui, Zhou Pengyun, Li Xinmeng, Zhang Timeng, Zhao Hongfu and Kong Lin..