Production of electric heating food processing equipment. General projects: technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; manufacturing of railway locomotive and rolling stock parts; sales of railway locomotive and rolling stock parts; manufacturing of high-speed rail equipment and parts; sales of high-speed rail equipment and parts; manufacturing of railway-specific measuring or testing instruments; sales of railway-specific measuring or testing instruments; manufacturing of urban rail transit equipment; sales of rail transit engineering machinery and parts; sales of rail transit special equipment, key systems, and parts; research and development of household appliances; manufacturing of household appliances; sales of household appliances; manufacturing of refrigeration and air conditioning equipment; sales of refrigeration and air conditioning equipment; manufacturing of mechanical and electrical equipment; sales of mechanical and electrical equipment; repair of electrical equipment; manufacturing of general equipment (excluding special equipment manufacturing); repair of general equipment; manufacturing of special equipment (excluding licensed professional equipment manufacturing); repair of special equipment; manufacturing of electronic (gas) physical equipment and other electronic equipment; sales of electric heating food processing equipment; manufacturing of automotive parts and accessories; research and development of automotive parts; sales of new membrane materials; research and development of new material technologies; manufacturing of electronic components; manufacturing of power electronic components; sales of power electronic components; manufacturing of other electronic devices; metal cutting processing services; processing of mechanical parts and components; sales of mechanical parts and components; manufacturing of general parts; leasing of non-residential real estate; sales agency; labor services (excluding labor dispatch).