General projects: Medical research and experimental development; Technical services, development, consultation, exchange, transfer, and promotion; Sales of Class I medical devices; Sales of Class II medical devices; Sales of hygiene products and disposable medical supplies; Sales of special labor protection equipment; Retail of medical masks; Wholesale of medical masks; Retail of protective equipment for medical staff; Wholesale of protective equipment for medical staff; Sales of disinfectants (excluding hazardous chemicals); Sales of packaging materials and products; Sales of daily masks (non medical); Sales of personal hygiene products; Sales of needle textiles and raw materials; Sales of industrial textile products; Sales of needle textiles; Sales of plastic products; Sales of paper products