Plastics
| Mon 16 Feb 2026
Beijing, Feb. 17 -- Qingdao Lijiu Motor Tech Co Ltd has sought patent for Spring Auxiliary Structure for Mold Opening. This invention was developed by Zhang Cheng, Du Shanhong, Wang Xiangyu, Wang Xiaowei, Ge Wenqiang, Chu Yukang, Yang Zengyu, Zhang Jinchao, Zhao Yanrong and Zhao Xiaojie.
The patent application number is CN202..