General items: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; sale of new energy vehicles; distribution of motorcycles and spare parts; sale of mechanical equipment; sale of machinery spare parts; sale of electrical equipment; sale of electronics; sale of recreational equipment in ordinary open-air playgrounds; distribution of bicycles and spare parts; sale of batteries; sale of specialized equipment; sale of non-road recreational vehicles and spare parts; sale of special equipment; sale of electrical equipment; maintenance of electrical equipment without special equipment; sale of air conditioning equipment; sale of general equipment; licensing of general equipment for the installation of general equipment, except in accordance with the law