In order to achieve the railway great-leap-forward development and meet the requirement of rapid development of urban track traffic, China Railway Track Systems Group Corporation Limited (CRTSG for short) was established as a professional industrial manufacture group in 2007. As a member of CRCC which ranks No.133 among Fortune 500 enterprises, we are mainly specialized in the research and development, manufacture, inspection and maintenance service of the large-scale tunnel construction equipment, railway track systems, urban track products and steel structure products. With 800 million Yuan of registered capitals, CRTSG has more than 6000 staff members and our headquarters is located in National Economic and Technology Development Zone of Changsha. Our company established four industrial parks which are separately located in Changsha of Hunan, Zhuzhou of Hunan, Longchang of Sichuan and