Research and development of radio frequency identification system products, Production( Business can only be carried out after obtaining a license), Sale; Sale: security equipment( Except for national controlled products),LED equipment、 Computer hardware and software, Network monitoring equipment, communications equipment; Smart parking lot, Smart home product R&D, sales and agency; Self-operated and agency import and export business of general business items, commodities and technologies, The import and export of licensed items and technologies must obtain special approval from the state before they can be operated.( Except for goods and technologies that the state restricts companies from operating or prohibits import and export)。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments。)