No matter new customer or outdated client, We believe in extensive phrase and trusted relationship for Heat Recovery Unit, Counterflow Heat Exchanger, Commercial Air Handling Unit, Thermal Heat Exchanger,Hrv Home Ventilation. Since establishment within the early 1990s, now we have arrange our sale network in USA, Germany, Asia, and several Middle Eastern countries. We intention to get a top class supplier for worldwide OEM and aftermarket! The product will supply to all over the world, such as Europe, America, Australia,Denmark, South Africa,Adelaide, Belgium.Our product quality is one of the major concerns and has been produced to meet the customer's standards. "Customer services and relationship" is another important area which we understand good communication and relationships with our customers is the most significant power to run it as a long term business.