Tools and Machinery
| Wed 20 May 2026
Beijing, May 21 -- CRRC Dalian has submitted a patent application for Screen Handrail Structure. Zhang Jingda, Qu Xiaomei, Zhao Hui, Yan Shuai, Wu Chaoyang, Shi Hongfeng, Shui Chaoyue, Yang Yuchen, Wang Rui, Ding Xiuyu and Cai Changliang developed the invention.
The patent application number is CN202511806748 20251203. The pa..