We always continually provide you with the most conscientious customer service, and the widest variety of designs and styles with finest materials. These efforts include the availability of customized designs with speed and dispatch for Industrial application of AHUs, no cross contamination heat exchangers , Heat recovery ventilation system , HRU ,industrial hvacr . Excellent quality, competitive prices, prompt delivery and dependable service are guaranteed Kindly let us know your quantity requirement under each size category so that we can inform you accordingly. The product will supply to all over the world, such as Europe, America, Australia,Doha , Cologne ,Plymouth , Latvia .Our domestic website's generated over 50, 000 purchasing orders every year and quite successful for internet shopping in Japan. We would be happy to have an opportunity to do business with your company. Looking forward to receiving your message !