Persisting in "High high quality, Prompt Delivery, Aggressive Price", we've established long-term cooperation with clients from the two overseas and domestically and get new and old clients' superior comments for Ventilation Unit, commercial HVAC fresh air ventilation system , Floor ERV , indoor air quality ,sensible heat exchanger . Welcome to post your sample and color ring to let us produce according to your specification.Welcome your inquiry! Looking forward to building long-term cooperation with you! The product will supply to all over the world, such as Europe, America, Australia,Cyprus , Portland ,Congo , Philadelphia .Our products are mainly exported to Southeast Asia, the Middle East, North America and Europe. Our quality is surely guaranteed. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.