Since 2001, the company has successfully introduced dozens of world advanced shield machines of large and super-large size for underground construction projects in Shanghai, Nanjing, Shenzhen etc., Shanghai Maglev Project, Shanghai-Chongming-Jiangsu Cross-river Channel Project and Shanghai Bund Channel Reconstruction Project etc., and participated in a large number of municipal construction projects. Meanwhile, in order to meet the requirements of municipal construction projects, the company worked as the import agent for construction machinery such as crane, concrete mixer, pump truck, container tractor, excavator, formation machines and etc. The company has made great contributions to the municipal construction.