Nature of Business General project technical services, technical development, technical consultation, technical exchange, technology transfer and technology promotion; Software development, mechanical equipment research and development, air transportation equipment sales; Sales of mechanical equipment and electrical equipment; Sales of electronic products; Wholesale of electronic components; Internet sales (except sales of goods requiring license); (the above sales are only limited to wholesale and online sales) (except for the items subject to approval according to law, the business activities shall be carried out independently according to law with the business license).