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 Air Sterilization, Ventilation System Design , Keywords B , wheel type heat recovery core ,fresh air recuperative ventilation . Our organization has been devoting that "customer first" and committed to helping clients expand their small business, so that they become the Big Boss ! The product will supply to all over the world, such as Europe, America, Australia,Johannesburg , Tajikistan ,Paraguay , Paraguay .Being the top solutions of our factory, our solutions series have been tested and won us experienced authority certifications. For additional parameters and item list details, please click the button to acquire additional nformation.