Company working scope: Import and export of the goods; Import and export of the technologies; Technical service, technical development, technical consulting, technical exchange, technical transfer and technical promotion; Industrial design service; Professional design service; Installation service of general mechanical equipment; Information consulting service (excluding licensed information consulting service); Sale of special electronic equipment; Sale of electronic products; Sale of metallic materials; Sale of metallic products; Sale of chemical products (excluding licensed chemical products); Engineering management service; Information technology consulting service; Sale of mechanical equipment. (Excluding the items requiring approval in accordance with the laws, whose business activities shall be carried out independently and legally according to the business license)