Printing & Publishing
| Sun 01 Nov 2026
Beijing, Oct. 31 -- Sichuan Chuanhuan Technology has filed a patent application for Solvent-wiping-resistant Rubber Tube Identification Ink and Preparation Method Thereof. This invention was developed by Han Di, Wen Yong, Li Chenyu, Wen Yiming, Zhang Liping, Zhang Qin, Lin Xiong and Deng Dongmei.
The patent application number i..