Licensed Projects: Technology import and export, Import and export of goods( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: Building materials sales, Hardware wholesale, Hardware product retail, Electronics sales, Machinery and equipment sales, Electrical machinery and equipment sales,Chemical product sales( Does not contain permitted chemical products), Internet sales( Except for the sale of goods that require a license), Data processing services, Data processing and storage support services, Information system integration services, Information technology consulting services, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Software Development, Computer and office equipment repair, Instrument repair( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)