DE-NAU（Shanghai）Advanced Technology Ltd. is a German Trading Company located in shanghai,China. As a member of the German-Chinese Business Association, De-Nau has been committed to promoting trade between Germany and China for many years. Thanks to the cultural and technical background of the company members, we have successfully qualified severe excellent suppliers of instruments and equipment as well as technical products for germany!After successful cooperation with TanPoQiuEr Cable System (S...