China Railway Construction Heavy Industry Co.， Ltd. (hereinafter referred as CRCHI)， formerly known as China Railway Track Systems Group， is a large-scale professional group which integrates research， design， manufacturing and construction of sophisticated rail equipment and heavy machinery and equipment. CRCHI established several manufacturing bases in Hunan， Sichuan， Hebei and Gansu， and 11 research institutes in Changsha， Beijing， Shanghai， etc. The technical center has more than 800 specialized R&D personnel.
　　　CRCHI actively brings the railway industry advantage into play， and makes full use of long-term accumulated construction experience and technology of China Railway Construction Corporation. CRCHI grasps core technologies with the world