The very rich projects management experiences and one to one service model make the high importance of business communication and our easy understanding of your expectations for HVAC Unit, 300cmh ERV , ERV , negative pressure and positive pressure ,industrial air conditioning . All prices depend upon the quantity of your order; the more you order, the more economical the price is. We also offer good OEM service to many famous brands. The product will supply to all over the world, such as Europe, America, Australia,Israel , Muscat ,Haiti , kazakhstan .We strongly believe that technology and service is our base today and quality will create our reliable walls of future. Only we have better and better quality , could we achieve our customers and ourselves, too. Welcome customers all over the word to contact us for getting further business and reliable relationships. We are always here working for your demands whenever you need.