Licensed Projects: Installation, modification and repair of special equipment, Construction Engineering Survey, Special equipment manufacturing, Construction project construction( 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: Special equipment sales, Engineering Management Services, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Computer system services, Software Development, Software Sales, Machinery and equipment sales, Electronics sales, Communications equipment sales, Building materials sales, Hardware wholesale, Hardware product retail, Sales of steel bars for construction, Metal material sales, Machinery and equipment rental, Building cleaning services, High-speed rail equipment、 Accessories Sales, High-speed rail equipment、 Accessories Manufacturing, Industrial robot manufacturing, Industrial robot installation、 repair, Industrial robot sales, Electronic measuring instrument manufacturing, Electronic measuring instrument sales, Railway locomotive and vehicle parts manufacturing, Railway locomotive and vehicle parts sales, Special equipment manufacturing( Excluding licensed professional equipment manufacturing), Rail transit special equipment、 Sales of key systems and components, Enterprise Management, Technology import and export, Import and export of goods( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)