In an effort to provide you advantage and enlarge our business enterprise, we even have inspectors in QC Staff and assure you our greatest provider and item for Total Heat Exchanger, HVAC Unit , Slim Ventilation , negative pressure room ,Rooftop Air Conditioner . We welcome new and previous customers from all walks of lifestyle to call us for upcoming business enterprise interactions and reach mutual accomplishment! The product will supply to all over the world, such as Europe, America, Australia,Sao Paulo , Venezuela ,Sao Paulo , New Zealand .We have been making our products for more than 20 years . Mainly do wholesale , so we have the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we provide good products , but also because of our good after-sale service . We are here waiting for you for your inquiry.