Transportation
| Fri 19 Jun 2026
Beijing, June 20 -- Hubei Electric Power Planning and Design Instument has submitted a patent application for Traffic Sign and Preparation Method Thereof. This invention was developed by Wu Zhongliang, Zhan Sanjun, Zhao Hui, Zou Debiao, Peng Tingguang, Wang Xuyang, Yan Wei, Xie Zuowei, Ai Xiaojun, Xu Qiang, Xia Yin, Luo Junjun, ..