In the past few years, our business absorbed and digested advanced technologies both equally at home and abroad. In the meantime, our company staffs a group of experts devoted to your advancement of passitive house ventilation system, AHU heat recuperative core , heat exchanger factory , china heat exchangers manufacturers ,Fresh Air . We are sincerely looking forward to cooperate with buyers all around the world. We imagine we will satisfy you. We also warmly welcome shoppers to visit our organization and purchase our merchandise. The product will supply to all over the world, such as Europe, America, Australia,El Salvador , Montpellier ,Nairobi , Denmark .We also provide OEM service that caters to your specific needs and requirements. With a strong team of experienced engineers in hose design and development, we value every opportunity to provide best products for our customers.