China Engineering Equipment Group Co. , Ltd. for the world 500 Strong firm-An important member of the industrial sector of China Railway Corporation Limited, It has been developed into a tunnel boring machine, Tunnel mechanization special equipment, Underground space development three industries organic linkage, A comprehensive enterprise group with comprehensive underground engineering equipment services to lead the diversified development. China Railway equipment leading products "TBM" Shield machine products sell well all over the world, The domestic market share has been the first for many years, Is implemented by China "the Belt and Road" An important bridge for initiatives.