Li Wei, a member of the innovation group dedicated to the pre-fab railway parts research in a company of the China Railway 11 Bureau Group co., LTD., checks the quality of a product in Fengcheng of east China's Jiangxi Province Jan. 22, 2018. The group of young researchers spearheaded in technology innovation in the construction of the Nanchang-Ganzhou railway line and has achieved a series of patents in cost control, quality control and standardization. The 415-kilometer passenger line linking the provincial capital Nanchang with Ganzhou city in the province is designed to run at the speed of 350 km per hour.(Xinhua/Song Zhenping)