Dong Ying He Chen Refrigeration equipment CO.,LTD is a company specializing in central air conditioning,central ventilation system and water purifying plant.More than ten years working experience.We have a lot of success cases with professional design and construction teams.Relying on three manufacturing bases of China.Constantly improve their own marketing and service system.In line with the concept of sincerity we are willing to develop with friends from all over the word and create a better future together.