Energy
| Sat 31 Jan 2026
Beijing, Jan. 31 -- Yingkou Cigarette Factory Hongta Liaoning Tobacco has submitted a patent application for Modularized Small Boiler Smoke Tube Ash Removal Device. This invention was developed by Li Dewen, Wu Zhaogang, Shang Li, Wang Wenfeng, Hao Xu, Huang Yan, Sun Xueyong, Liu Feng, Bian Guangfu, Li Zhiming, Yang Cheng, Shi Ka..