In 2005, Shanghai DARREN Air Conditioning & Refrigeration Equipment Co., Ltd. became DARREN Research Institute's important cooperation partner in China. With the world's leading refrigeration unit control technology, DARREN research institute became a shareholder of Shanghai DARREN Air-Conditioning & Refrigeration Equipment Co., Ltd., and authorized the joint venture company to promote and sell the products with DARREN trademark. The global strategy of the cooperation is: by the R & D ...