The corporate keeps towards the operation concept "scientific administration, superior quality and performance primacy, client supreme for Classroom Ventilation, ventilation system for hospital , Villa ventilation system , Heat recovery ventilation system ,High efficiency heat exchanger . We welcome new and old shoppers to make contact with us by telephone or mail us inquiries by mail for foreseeable future company associations and attaining mutual achievements. The product will supply to all over the world, such as Europe, America, Australia,South Africa , Frankfurt ,Porto , Frankfurt .Our Company has qualified engineers and technical staff to answer your questions about maintenance problems, some common failure. Our product quality assurance, price concessions, any questions about the items, Be sure to feel free to contact us.