The second category is medical device operation, technology development, technical consultation, technical service and technology transfer of mobile Internet; Technology development, technical consultation, technical service, technology transfer and sales of intelligent wearable equipment, virtual reality equipment, computer, instrument, electronic equipment, network software and hardware; Network equipment, communication products, electronic products, security products, smart home Technical development and sales of residential and office equipment and spare parts; Maintenance of network security; Construction of computer network engineering; Integration of computer system; Planning of cultural activities and marketing; Engaging in advertising business, e-commerce, domestic trade, import and export of goods and Technology (excluding exclusive, exclusive and controlled commodities). (if the above business scope needs to be examined and approved according to the state regulations, it can be operated only after being approved).