The registration address of nanjing tenghui experimental science and technology ltd. Is located in room a1248, 180 west park, jiangbei new zone, nanjing city. The registration authority is the administrative approval board of the nanjing north new zone management board, represented by a legal person, zhang zhang qian, and operates under a licence project: category iii medical equipment operations (projects subject to legal authorization and subject to approval by the relevant authorities) are subject to operational activities, depending on the outcome of the approval: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; import/export agents; import/export of goods; export/import of technology; sale of experimental analytical instruments; sale of architectural and decorative materials; sale of instrument instruments; operation of electrical cables; sale of plastics; sale of metal parts for construction; sale of daily masks (non-medical); sale of type ii medical equipment; sale of disinfectants (other than dangerous chemicals); sale of needle textiles; sale of chemical products; sale of daily supplies; retail sale of clothing; sale of footwear caps; sale of packaging materials and products; sale of rubber products; sale of chemical products (other than licensed chemical products); sale of furniture; domestic trade agents; sale of teaching equipment (in addition to legally authorized projects, operating autonomously on the basis of a legal licence)