China Nanjing DongDa Computer Centralized Control System Co., Ltd. was founded in 1993, it is a professional company mainly involved in Computer System Integration, Network Projects, Development of Computer Application Software, E-Business, Information and Sci-tech, Marketing and Advertising strategies, Market Research and Forecasting etc. The company insists on the conception of creating values for the customers and sticks to the principle of carrying out scientific management according to procedures, it has set up a vigorous and well qualified personnel team and our aim is to provide professional and integrated services for enterprises both at home and abroad.