--China Railway Bureau Group Co., Ltd. is a comprehensive construction capacity of large construction companies, Fortune 500 companies - China Railway Group Limited business models and key members of the unit holds a railway construction contract premium quality, roadmunicipal, housing construction, mechanical and electrical installation works contract is a qualification, bridges, tunnels, roadbed, road surface, railway track laying girder railway electricity department, the electrification project at the professional level qualification, telecommunications engineering, architectural decoration engineering, firefacilities engineering, tunnel, steel structure engineering and other professional contracting qualification, road traffic engineering, urban rail traffic engineering contractor qualifications, Water Resources and Hydropower contracting secondary qualifications; steel design qualification, environmental engineering, geological disaster controlgrade A qualification of engineering, railway industry, a (¢ò) level, the construction industry grade A design qualification. Meanwhile, the company also has the qualification of foreign project contracting and foreign operating rights. In addition to the infrastructure construction, the company's business scope also includes a number of areas of the construction survey and design, new materials and manufacturing, railway operators, large-scale construction machinery leasing, equipment and materials for export, real estate development, national infrastructure investment.