General project: Manufacturing of specialized packaging equipment; Import and export of goods; Technology import and export; Paper product manufacturing; Sales of paper products; Manufacturing of plastic products; Sales of plastic products; Manufacturing of industrial textile products; Sales of industrial textile products; Sales of packaging materials and products; Promotion services for new material technology; Advertising design and agency; Manufacturing of paper and cardboard containers; Manufacturing of specialized equipment for pulp and paper production; Mold manufacturing; Mold sales; Sales of specialized equipment for pulp and paper production; Production of daily masks (non-medical); Sales of daily masks (non-medical); Retail of medical masks; Wholesale of medical masks; Sales of labor protection equipment; Wholesale of protective equipment for medical staff; Retail of protective equipment for medical staff; Sales of Class II medical devices; Manufacturing of specialized printing equipment; Mechanical equipment research and development; Sales of mechanical equipment; Sales of hygiene products and disposable medical supplies (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law). Licensed project: Production of medical masks; Production of protective equipment for medical staff (Class II medical devices); Printing of packaging decoration and printed materials; Production of food paper packaging and container products; Production of hygiene products and disposable medical supplies (for projects that require approval by law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results).