As a state-level large-scale comprehensive survey and  design company, our businesses involve defense industry, civil aviation products, civil and  general aviation, civil construction, municipal environment, infrastructure and  civil industry represented by pharmaceutical engineering, etc, forming three business areas of consultancy and  design, engineering procurement construction and  equipment general contracting, being capable of providing whole-value chain services to customers in many fields, such as planning, consultancy, geotechnical survey, design, construction, operation, equipment general contracting and  consequent evalsuation solution. We also forge a worldwide leader in large span structure, aircraft and  engine maintenance engineering, science and  technology expo building, aviation planning and  construction, large-scale aeronautical test equipment design and   manufacturing, energy and  environmental engineering, construction and  operation, survey and  measurement technologies and  other fields.