We believe that long expression partnership is often a result of top of the range, value added service, prosperous encounter and personal contact for Counter Flow Heat Exchanger, Air And Ventilation, Ventilation Fans, Ventilation System Design,Heat Recovery Ventilation System. We persistently develop our enterprise spirit "quality lives the enterprise, credit assures cooperation and keep the motto in our minds: customers first. The product will supply to all over the world, such as Europe, America, Australia,Poland, Thailand,Netherlands, UK.Our company always concentrate on the development of the international market. We have a lot of customers in Russia , European countries, the USA, the Middle East countries and Africa countries. We always follow that quality is foundation while service is guarantee to meet all customers.