Business agency services; procurement agency services; domestic cargo transportation agency; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; research and development and consulting services of electromechanical technology; transformation and installation of CNC processing machinery and equipment, general machinery and equipment, equipment tools and automation equipment; import and export of goods, technology import and export (except items prohibited by laws and regulations; laws and regulations Projects restricted by regulations can only be operated after obtaining a license); sales: automation machinery and equipment, general machinery and equipment, electrical machinery and equipment, metal materials (excluding rare and precious metals), building materials (excluding chemical dangerous goods), wires and cables, chemical products (excluding chemical dangerous goods and precursor chemicals), instruments and meters, automobile spare parts, motorcycle spare parts (excluding engine production and processing).