General item date: Sales of Class I medical devices; Sales of the second type of medical devices Sales of instruments and meters Sales of experimental analysis instruments Sales of needle and textile products Retail of sports goods and equipment Technical services, technical development, technical consultation, technical exchange, technical transfer, and technical promotion; Information consulting services (excluding information consulting services subject to licensing); Enterprise management consulting. (Except for projects that require approval in accordance with the law, business activities are carried out independently in accordance with the business license. )