Wholesale of Class II medical devices, Electronics、 Electronic components sales and maintenance( Does not include radio controlled equipment and satellite ground receiving facilities), Research on Communication and Automatic Control Technology、 Development、 Sale( Does not include wireless transmitter terminal products), Software Development, Research and development of network technology, Marketing planning services、 Market research services,Business Consulting( Excluding finance、 Securities、 futures), Sales of labor protection products, Pre-packaged food、 Bulk food sales, Self-operated or agency import and export of various commodities and technologies( Except for goods and technologies that are restricted or prohibited from import and export by the state)( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)