Printing & Publishing
| Mon 22 Apr 2024
Beijing, April 23 -- State Intellectual Property Office of China has awarded Changge Dayang Paper a patent for stirrer for printing packaging materials. Sun Jingfeng, Zhang Jianmin, Hu Songfeng, Zhang Junping, Ma Dayong, Yue Zhonghua, Cao Linqiang, Zhang Qiangqiang, Wang Jianyong, Ye Xiaohua and Gao Yunlong developed the inventi..