Our firm since its inception, normally regards item top quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for Fresh air ventilation, HVAC air handling units , Floor ERV , Classroom Ventilation ,total heat recovery wheel . We welcome buyers all around the word to call us for long term company associations. Our items are the most effective. Once Selected, Ideal Forever! The product will supply to all over the world, such as Europe, America, Australia,Detroit , Kuala Lumpur ,panama , Algeria .High output volume, top quality, timely delivery and your satisfaction are guaranteed. We welcome all inquiries and comments. We also offer agency service---that act as the agent in china for our customers. If you are interested in any of our products or have an OEM order to fulfill, please feel free to contact us now. Working with us will save you money and time.