China Railway ( Hong Kong ) Science Research Institute Limited, is a high-tech enterprise integrating "production, learning and research". With independent intellectual property rights (patented technology), the company has made a major breakthrough in the research and development of a series of products including Bainite steel railway frogs, switch blades, stock rails, curved track and turnout systems. The successful development of the U20Mn complex phase structure steel once again leads the technical revolution in the field of new materials. Its service life is three to five times that of ordinary materials, leading to high wear resistance, high impact resistance and weld ability. China's freight railway line has become the largest in the world in terms of train axle weight, single traffic volume and annual traffic volume.
