Production of the second category、 Class III medical devices; Sales of Class III medical devices: For heart treatment、 First aid equipment, Invasive medical sensors, Color ultrasound imaging equipment and ultrasound intervention/ Intracavitary diagnostic equipment, Medical magnetic resonance imaging equipment(MRI),X Radiation diagnostic equipment and high-voltage generating devices,X X-ray computed tomography equipment(CT), Medical high-energy radiation therapy equipment, Radionuclide diagnostic equipment,Blood purification equipment and blood purification devices, breathing equipment, Intravascular catheter, Guidewire and sheath, Embolization devices, Class II medical devices: ECG diagnostic equipment, Non-invasive monitoring equipment, Respiratory function and gas analysis measuring device、 Computer hardware and software、 Instruments; Sales of Class I medical devices、 Hygiene products、Daily groceries、 Chemical products( Does not contain dangerous chemicals and precursor drugs); Technology Development、 Technical Consulting( Except intermediaries)、 Technical training、 Technology Transfer; Import and export of goods; Production of non-medical masks( Life insurance only during the epidemic period); Selling self-produced products。 Production of Class I medical devices。( Market entities independently choose business projects in accordance with the law, Carry out business activities; Production of the second category、Class III medical devices and items subject to approval according to law, Carry out business activities in accordance with the approved content after approval by relevant departments; Not be allowed to engage in business activities of projects prohibited or restricted by national and municipal industrial policies。)