We continue to keep increasing and perfecting our solutions and service. At the same time, we operate actively to do research and enhancement for fresh air recuperative ventilation, commercial HVAC fresh air ventilation system , industrial air handling system , Total Heat ,commercial ventilation system . We are also the appointed OEM factory for several worlds' famous products brands. Welcome to contact us for further negotiation and cooperation. The product will supply to all over the world, such as Europe, America, Australia,Libya , Bolivia ,USA , El Salvador .You can let us know your idea to develop unique design for your own model to prevent too much similar parts in the market! We will offer our best service to satisfy all your needs! Please contact us right away!