Beijing kyingdong science and technology ltd. Is registered at no. 69, song zhang town, tongzhou district, beijing. The registration authority is the market supervision authority of the tongzhou region, beijing. The legal person is von yun peng; operates on technical development, technical advice, technical services and technical promotion; develops, sells and sells electronic medical instruments, medical aids, high frequency surveyors; retail teaching equipment, specialized equipment for air purification, office equipment, mechanical equipment, household appliances, electronic products, electrical equipment, refrigeration equipment, communications equipment, computer software and assistive equipment, cultural and public safety equipment and equipment; interior decoration design; economic trade consulting; hosting exhibitions; conference services; design, production, agency, advertising; basic software services, application services (without medical software); brokering, import and export of technical equipment, import and export of goods; rental of commercial premises, office premises (not allowed to operate as tangible market premises); warehousing services (only restricted); sale of wood products, curtains, furniture, non-resilted steel, type ii medical devices; specialized equipment for maintenance (without medical software software); general equipment for the construction of agricultural machines; and other contractual equipment; general equipment equipment; and (the subject of the market may, in accordance with the law, freely choose to operate projects and carry out business activities; ordinary freight and legally approved projects shall operate on the basis of the approved content, with the approval of the relevant sector; and shall not engage in activities in which the state and municipal industrial policy prohibits and restricts the operation of such projects。