General Projects: Railway locomotive and vehicle parts sales, Railway rolling stock sales, Special equipment sales, Motor vehicle charging sales, Tram sales, Sales of hydraulic power machinery and components, Mining machinery sales, Rail transit special equipment、 Sales of key systems and components, Sales of rail transit engineering machinery and parts, Battery Sales, Sales of green composite materials for rail transit, gas、 Liquid separation and purification equipment sales, Lubricant sales, Petroleum product sales( No hazardous chemicals), Engineering Management Services, Machinery and equipment sales, Business agency services, Inspection business, loading and unloading, Gears and gear reduction、 Transmission Sales, Motor vehicle repair and maintenance, Special equipment repair, Electrical equipment repair, Sales of labor protection products, Import and export of goods, Technology import and export, Small and micro passenger car rental services, Traffic facility maintenance, Machinery and equipment rental。( 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 rolling stock design, Construction project construction, Special equipment inspection and testing, Inspection and testing services。( 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.)