Tobacco
| Tue 20 Oct 2026
Beijing, Oct. 20 -- China Tobacco Yunnan Industrial has obtained a patent for particle preparation device. This invention was developed by Ding Haiyan, Si Xiaoxi, Cai Haocheng, Yan Keliang, Xiao Dong, Zhu Long, Wang Mingjing, Zeng Yicheng, Yang Jianyun, Peng Qiyuan, Jiang Wei, Li Shaoyang, Yin Mengnan, Zhou Bo, Zeng Wanli, Tang ..