"Quality first, Honesty as base, Sincere service and mutual profit" is our idea, in order to develop continuously and pursue the excellence for Ventilation System heat recovery core, Office Ventilation , Mechanical ventilation system with heat recuperative , small airflow ERV,industrial air conditioning . We warmly welcome friends from all walks of life to cooperate with us. The product will supply to all over the world, such as Europe, America, Australia,Azerbaijan , United States ,San Francisco , Korea .The working experience in the field has helped us forged a strong relations with customers and partners both in domestic and international market. For years, our products and solutions have been exported to more than 15 countries in the world and have been widely used by customers.