Research, development and sales of scientific experimental equipment and auxiliary instruments; R&D and sales of software and hardware for intelligent software systems and intelligent equipment; Information Technology Support Management、 Data processing and other information technology and business process outsourcing services( Except for industries involving restrictions, certificates, and national macro-control, Involving quota license management, Special regulations shall be handled in accordance with relevant regulations); Laboratory reagents and standards( No dangerous goods) Sales; Fire retardant materials、 Thermal insulation and energy-saving materials、 R&D and sales of refractory materials; Fire protection engineering、 Installation and service of thermal insulation projects; Engage in product testing business by undertaking service outsourcing( No test certificate is issued); Teaching instruments and equipment、 office supplies、 Instruments、 Sales of electronic and mechanical products and daily necessities、 Technology Transfer、 repair、 Consulting and Services。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments) Licensed Projects: Class III medical device operation( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: Sales of Class II medical devices; Sales of Class I medical devices; Retail of protective equipment for medical staff; Wholesale of protective equipment for medical staff; Sales of industrial textile products; Sales of labor protection products( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)