Printing & Publishing
| Tue 29 Sep 2026
Beijing, Sept. 28 -- Changge Yongcheng Packaging Mat Co Ltd has received a patent for Gravure Printing Machine with Printing Roller Convenient to Replace. This invention was developed by Zhang Junhai, Zhang Xiao, Zhang Xichao, Zhang Xiaoqiang, Liu Pengyang, Zhang Menglong, Kong Yachuang and Zhang Shuai.
The patent application..