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 wheel type heat recovery core, Counterflow Heat Exchanger , ALU HEAT EXCHANGERS , Mechanical ventilation with heat recovery ,Manufacturer of large airflow AHU . Now we have established steady and long business relationships with customers from North America, Western Europe, Africa, South America, more than 60 countries and regions. The product will supply to all over the world, such as Europe, America, Australia,South Africa , Roman ,Egypt , Milan .Our company insists on the principle of "Quality First, Sustainable Development", and takes "Honest Business, Mutual Benefits" as our developable goal. All members sincerely thank all old and new customers' support. We will keep working hard and offering you the highest-quality products and service.