Manufacturing and modification of refrigerated containers, insulated containers, and high-side dry cargo containers; sales of refrigerated containers and insulated containers; manufacturing, installation, and repair of refrigeration units; installation of refrigeration equipment; anti-corrosion engineering construction; sales of automobiles and auto parts. Licensed items: production of road motor vehicles. General items: manufacturing of general equipment (excluding special equipment manufacturing); manufacturing of specialized equipment (excluding licensed specialized equipment manufacturing); repair of general equipment; repair of specialized equipment; manufacturing of refrigeration and air conditioning equipment; manufacturing of automotive parts and accessories; sales of refrigeration and air conditioning equipment; information technology consulting services; information consulting services (excluding licensed information consulting services); technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion