The registered address of china-china changda rubber technology ltd. Is located on the 8th floor of building 12 of changhing east street, 9th street, beijing city house, and is represented by sun zheng, a legal entity, which operates in the areas of technology development, technical services, technical promotion, technical advice, product design, model design, sale of mechanical equipment, plastics, rubber products, electronics, medical equipment, sports supplies, office supplies, car parts, instrumentation forms, japanese chemicals, labour safety supplies, fire protection equipment. (the subject of the market may, in accordance with the law, freely choose to operate projects and carry out business activities; projects which are subject to legal approval and which are subject to the approval of the relevant sector; and activities in which the state and municipal industrial policy prohibits and restricts such projects