We believe that long time period partnership is a result of top of the range, value added services, rich expertise and personal contact for Auto Control Heat Recovery Ventilator, Plate Heat Exchanger, Air Exchange Unit, Indirect Evaporative Cooling,Heat Recovery Ventilators Wall Mounting. And there are also a lot of overseas close friends who came for sight seeing, or entrust us to buy other stuff for them. You will be most welcome to come to China, to our city and to our manufacturing facility! The product will supply to all over the world, such as Europe, America, Australia,Iraq, India,Honduras, Rwanda.We always insist on the principle of "Quality and service are the life of the product". Till now, our products have been exported to more than 20 countries under our strict quality control and high level service.