Good quality comes initial; company is foremost; small business is cooperation" is our business philosophy which is frequently observed and pursued by our business for Ventilation System heat recovery core, air condition , parts of HVAC system , AHU heat recuperative core ,ERV . Please don't hesitate to contact us if you are interested in our products. We firmly believe our products will make you satisfied. The product will supply to all over the world, such as Europe, America, Australia,Poland , French ,Latvia , Danish .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.