Licensed items: Class II medical device production; Class III medical device production; Class III medical device operation; Leasing of Class III medical devices; Production of hygiene products and single-use medical supplies; Production of protective equipment for medical personnel (Class II medical devices); Manufacture of wires and cables. (For projects subject to approval in accordance with the law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval documents or licenses of relevant departments). General items: Production of protective equipment for medical personnel (Class I medical devices); Retail of protective equipment for medical staff; Wholesale of protective equipment for medical staff; Class I medical device production; Class I medical device sales; Leasing of Class I medical devices; Class II medical device sales; Leasing of Class II medical devices; Domestic trade agency; Sales of hygiene products and disposable medical supplies; Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Engineering and technology research and experimental development; Metal tool manufacturing; Sales of metal tools; Metal cutting services; Metal cutting and welding equipment manufacturing; Sales of metal cutting and welding equipment; General equipment manufacturing (excluding special equipment manufacturing); Metalworking machinery manufacturing; Manufacturing of metal daily necessities; R&D of metal products; Sales of metal products; Repair of metal products; R&D of machinery and equipment; Sales of machinery and equipment; Machinery and equipment leasing; Hardware product research and development; Hardware product manufacturing; Wholesale of hardware products; Gas and liquid separation and purification equipment manufacturing; Sales of gas and liquid separation and purification equipment; Import and export of goods; Technology import and export; Instrument manufacturing; Instrumentation sales; Instrumentation repair; Intelligent instrumentation manufacturing; Sales of intelligent instrumentation; Manufacturing of industrial automatic control system devices; Sales of industrial automatic control system devices; Metal packaging containers and materials manufacturing; Sales of metal packaging containers and materials. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law).