We are experienced manufacturer. Wining the majority of the crucial certifications of its market for HVAC air handling units, negative pressure airflow , residential suspended heat energy recovery ventilation system , Cleanroom heat exchanger ,Slim Ventilation . At present, company name has more than 4000 kinds of products and gained good reputation and big shares on market domestic and overseas. The product will supply to all over the world, such as Europe, America, Australia,Surabaya , Colombia ,New Orleans , Malta .We provide good quality but unbeatable low price and the best service. Welcome to post your samples and color ring to us .We will produce the goods according to your request. If you are interested in any products we offer, please feel free to contact us directly by mail, fax, telephone or internet. We are here to answer your questions from Monday to Saturday and looking forward to cooperating with you.