Plastics
| Mon 17 Nov 2025
Beijing, Nov. 18 -- Poly Changda Engineering has been awarded a patent for Locking Structure for Reinforcing Anti-collision Wall Mold. This invention was developed by Zhang Xuehua, Yi Hao, Yu Haipeng, Ye Kaishun, Liu Bin, Zhang Wei, Li Jiongfeng, Jian Jinxiang, Liang Guoxi, Lan Jinling and Xu Shuxiang.
The patent application nu..