Rubber
| Tue 20 Jan 2026
Beijing, Jan. 21 -- AECC Chengdu Engine Co Ltd has filed a patent application for Method for Controlling Outer Edge Wrinkling in Concave-convex Thin-wall Disc Rubber Bag Pressing. This invention was developed by Lyu Wei, Zhang Bo, Huang Guanqi, Wu Guowei, Pei Cong, Qiao Lei, Li Xuemei, Deng Zhiqing, Song Zihao, Chen Haiyun and Y..