Construction
| Sat 22 Nov 2025
Beijing, Nov. 22 -- CRRC Qingdao Sifang has submitted a patent application for Machining Device for Framework. This invention was developed by Ning Yunzhan, Wang Shanshan, Zhang Ruixiang, Li Wen, Wang Hai, Liang Zhaoshun, Feng Yunming, Wei Wenpeng, Luan Fuhui and Liu Zantong.
The patent application number is CN202510229911 20..