We consistently carry out our spirit of ''Innovation bringing development, Highly-quality ensuring subsistence, Management promoting benefit, Credit attracting customers for Home fresh air ventilation system, Residential projects ERV , AHU heat recovery section , Classroom Ventilation ,ventilation system for hospital . 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,Cannes , United Arab Emirates ,Amsterdam , UK .We welcome customers from all over the world come to discuss business. We supply high quality products, reasonable prices and good services. We hope to sincerely build business relationships with customers from at home and abroad, jointly striving for a resplendent tomorrow.