In order to give you convenience and enlarge our business, we also have inspectors in QC Team and assure you our best service and product for heat recovery core of AHU, passitive house ventilation system , china heat exchangers manufacturers , no cross contamination heat exchangers ,negative pressure and positive pressure . We welcome new and old customers to contact us by phone or send us inquiries by mail for future business relationships and achieving mutual success. The product will supply to all over the world, such as Europe, America, Australia,Luxembourg , Florida ,Slovakia , Stuttgart .Upon today, we've customers from all over the world, including USA, Russia, Spain, Italy, Singapore, Malaysia, Thailand, Poland, Iran and Iraq. The mission of our company is to provide the highest quality products with best price. We've been looking forward to doing business with you.