Tobacco
| Tue 03 Feb 2026
Beijing, Feb. 3 -- Zhangjiakou Cigarette Factory has sought patent for Vibrating Screen Cleaning Device and Cleaning Method Thereof. This invention was developed by Jin Huaizhong, Ma Minglei, Chang Wenhui, Du Dongsheng, Pang Cunrui, Xu Gefei, Qin Xuebin, Li Zhiwei, Liu Xiongfei, Li Hongjin, Ma Hong, Hu Xiuwei, Wang Tonghui, Yuan..