Tobacco
| Thu 25 May 2023
Beijing, May 26 -- China Tobacco Henan Ind has submitted a patent application for vacuum damping machine operation state monitoring method and operation system. Zhao Zhiwei, Han Ming, Zhang Yuemin, Wang Jun, Chen Liang, Hu Yakai, Ning Xiao, Wu Xueqin, Zhu Jianxin, Luo Shuangqiang, Han Huidan, Shi Huaizhong, Meng Jin, Chen Ruiqin..