Transportation
| Sun 16 Nov 2025
Beijing, Nov. 17 -- China Railway 14 Bureau Group and Shandong University of Science and Technology have secured a patent on Suspension Fixing Device of Ventilation Air Duct. Jia Weidong, Liu Tongjiang, Wang Zilong, Wang Qiang, Wang Yingkui, Qian Cheng, Li Guangquan, Feng Wenshan, Lou Rui, Yang Fan, Fu Lin, Wang Xuhua, Wang Baol..