Wang Wei(L), head of an innovation group dedicated to the pre-fab rail parts research in a sub company of the China Railway 11 Bureau Group co., LTD., works with his colleague in Fengcheng of east China's Jiangxi Province Jan. 22, 2018. The group of researchers spearheaded in technology innovation in the construction of the Nanchang-Ganzhou railway line and has achieved a series of patents in cost young 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)