Production of Class II medical devices; operation of Class III medical devices; production of sanitary products and disposable medical supplies; production of disinfectant products for infectious disease prevention; production of disinfectants (excluding hazardous chemicals); sales of disinfection equipment; production of disinfection equipment. General items: production of Class I medical devices; sales of Class I medical devices; sales of Class II medical devices; professional cleaning, disinfection, and sterilization services; sales of electronic products; sales of mechanical equipment; sales of metal products; sales of instruments and meters; road freight transport for ordinary trucks with a total mass of 4.5 tons or less (excluding online freight and hazardous goods); manufacturing of garment accessories; sales of labor protection products; production of special labor protection products; sales of daily necessities; sales of industrial textiles; production of labor protection products; information consulting services (excluding licensed information consulting services); technical services, development, consulting, exchange, transfer, and promotion; sales of chemical products (excluding licensed chemical products); wholesale of sporting goods and equipment; internet sales (excluding goods requiring sales permits); manufacturing of maternal and infant products; sales of maternal and infant products; manufacturing of daily-use miscellaneous products; sales of personal hygiene products; sales of disinfectants (excluding hazardous chemicals).