Plastics
| Wed 01 Jul 2026
Beijing, July 1 -- China National Pulp and Paper Research Inst Co Ltd has sought patent for Method for Spraying Film. This invention was developed by Su Yanqun, Zhang Ruijuan, Chen Jinghuan, Hou Leilei, Cheng Yun, Liu Quanxin, Wang Bisong, Zhang Hongjie, Li Hongcai, Liu Jingang, Guo Yuqian and Chen Linghua.
The patent applica..