Licensed Projects: Import and export of goods, Technology import and export, Import and export agent( 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: General mechanical equipment installation services, Mechanical equipment research and development, Machinery and equipment sales, Hardware wholesale, Domestic trade agent, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)