Software Development; Information system integration services; Information technology consulting services( Excluding information technology training services); Architectural decoration and renovation engineering design、 construction; Sale: computer、 Software and auxiliary equipment, Mechanical and electrical equipment, Electronics, Hardware products, medical devices, Daily necessities, office supplies, Kitchen and bathroom appliances, building materials, photographic equipment, Chemical products( No dangerous goods); Sales of social public security equipment、 Installation and on-site repair; Import and export of goods and technology。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)。