That has a sound business credit history, outstanding after-sales service and modern producing facilities, we have earned an superb popularity amid our buyers across the planet for 600cmh ERVs, Ventilation System heat recovery core , Holtop AHU heat exchanger , fresh air purification ,Ventilation System Design . Good quality and competitive prices make our products enjoy a high reputation all over the word. The product will supply to all over the world, such as Europe, America, Australia,Madras , Kenya ,Bolivia , Sri Lanka .Due to good quality and reasonable prices, our products have been exported to more than 10 countries and regions. We are looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.