We are committed to providing easy,time-saving and money-saving one-stop purchasing service of consumer for HRU, Air Conditioning , Holtop Heat exchanger , negative pressure isolation room ,HVAC air handling units . Our Lab now is "National Lab of diesel engine turbo technology " , and we own a professional R&D team and complete testing facility. The product will supply to all over the world, such as Europe, America, Australia,Iraq , Muscat ,Croatia , Montpellier .We aspire to meet the demands of our customers globally. Our range of merchandise and services is continuously expanding to meet customers' requirements. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!