General items: production of class I medical devices; Sales of class I medical devices; Sales of class II medical devices; Production of daily masks (non-medical); sales of daily masks (non-medical); sales of daily necessities; sales of knitwear and textiles and raw materials; manufacturing of medical packaging materials; production of industrial textile products; sales of industrial textile products; spinning processing; production of labor protection articles; sales of labor protection articles; manufacturing of daily chemical products; production of protective articles for medical personnel (class I medical devices); retail of protective articles for medical staff; wholesale of protective articles for medical staff; manufacturing of bio based materials; sales of bio based materials; manufacturing of high-performance fibers and composites; sales of high-performance fibers and composites; manufacturing of rubber products; manufacturing of plastic products; manufacturing of plastic packaging boxes and containers; manufacturing of sanitary ware; sales of sanitary ware; plastic surface handle; Manufacturing of glass fiber and products; Sales of glass fiber and products; Production of special labor protection articles; Sales of special labor protection articles; Manufacturing of metal wire rope and its products; Mold manufacturing; Mold sales; Glasses manufacturing; Manufacturing of computer software, hardware and peripheral equipment; Manufacturing of experimental and analytical instruments; Manufacturing of daily sundries; Retail of medical masks (except for the items that must be approved according to law, the business activities shall be carried out independently according to law with the business license). Licensed items: production of class II medical devices; production of class III medical devices; production of sanitary articles and disposable medical articles; production of medical masks; production of protective articles for medical and nursing personnel (class II medical devices); import and export of goods; import and export of technology; printing of packaging and decoration printed matter; binding services of printed matter; printing of documents, materials and other printed matter; production of disinfection products for prevention and control of infectious diseases (for projects that must be approved according to law, business activities can be carried out only with the approval of relevant departments. The specific business projects shall be subject to the approval documents or permits of relevant departments)