In 2005, Shanghai Dalen air-conditioning & refrigeration equipment Co., Ltd. , become DALEN Research Institutes important cooperation partner in China.With the worlds leading refrigeration unit control technology, DALEN research institue become a shareholder of Shanghai Dalen air-conditioning refrigeration equipment Co., Ltd., and authorized the joint venture company to promote and sell the products with DALEN trade mark.according to the different characteristic of various nations and regions, Shanghai Dalen gradually perfect its industrial refrigeration, air treatment and refrigeration technology, equipment and products, unceasingly enrich its global strategy, and offers high quality products and excellent service for the Chinese mainland and overseas customers. Shanghai Dalen always insists of the belief of good faith, responsibility and innovation. Dalen technology:focus, so professional