General Projects: electronic、 Mechanical equipment maintenance( Excluding special equipment), Railway locomotive and vehicle parts sales, Railway rolling stock sales, Railway transportation equipment sales, Railway transportation infrastructure equipment sales, Railway locomotive and vehicle parts manufacturing, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Metal ore sales, Sales of non-metallic minerals and products, Metal material sales, Metal tool sales, High-speed rail equipment、 Accessories Manufacturing, Sales of rail transit engineering machinery and parts, High-speed rail equipment、 Accessories Sales, Transportation equipment rental services, Railway transport support activities, Machinery and equipment sales, Machinery and equipment rental, General mechanical equipment installation services, Rail transit special equipment、 Sales of key systems and components, Mechanical parts、 Parts Sales, Communications equipment sales, Communications equipment repair, Satellite mobile communication terminal sales, Optical communication equipment sales,Computer and communication equipment rental, Network Technology Services, Building materials sales, Mechanical equipment research and development, Auto parts research and development, Import and export of goods, Internet sales( Except for the sale of goods that require a license), Special equipment sales, Coal-fired flue gas desulfurization and denitrification equipment manufacturing, Sales of coal-fired flue gas desulfurization and denitrification equipment, Metal processing machinery manufacturing, Metal product sales, Metallurgical special equipment manufacturing, Sales of metallurgical equipment, Metal shipbuilding, Ship Sales, General equipment manufacturing( Excluding special equipment manufacturing), General equipment repair, Metal cutting services。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations) Licensed Projects: Railway locomotive and vehicle maintenance, Railway transportation infrastructure equipment manufacturing, Railway locomotive and vehicle manufacturing, Special equipment manufacturing。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.)