Production of sanitary products and disposable medical supplies; production of Class II medical devices; production of Class III medical devices; Class II value-added telecommunications services; road cargo transportation (excluding dangerous goods); operation of Class III medical devices; Internet information services for medical devices. General items: sales of Class I medical devices; production of Class I medical devices; manufacturing of general equipment (excluding manufacturing of special equipment); sales of sanitary products and disposable medical supplies; sales of engineering plastics and synthetic resins; sales of high-quality synthetic rubber; sales of synthetic materials; sales of plastic packaging containers and tool products for food; sales of rubber products; sales of machinery and equipment; repair of special equipment; manufacturing of transformers, rectifiers and inductors; manufacturing of motors; metal materials Manufacturing; wholesale of electronic components; retail of hardware products; Internet sales (except for the sale of goods requiring licenses); sales of daily necessities; domestic trade agency; sales of dyes; retail of daily household appliances; wholesale of cosmetics; retail of cosmetics; non-residential real estate leasing; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; loading and unloading; sales of second-class medical equipment; retail of protective equipment for medical staff; wholesale of protective equipment for medical staff. (You are not allowed to engage in business activities that are prohibited or restricted by national and municipal industrial policies.)