Being supported by an highly developed and skilled IT group, we could offer you technical support on pre-sales & after-sales support for residential suspended heat energy recovery ventilation system, negative pressure isolation room , heat recovery core , ventilation system for hospital ,Holtop AHU heat exchanger . With a wide range, top quality, reasonable rates and stylish designs, our products are extensively used with this industries and other industries. The product will supply to all over the world, such as Europe, America, Australia,Montreal , Holland ,Luxemburg , Vancouver .Our domestic website's generated over 50, 000 purchasing orders every year and quite successful for internet shopping in Japan. We would be happy to have an opportunity to do business with your company. Looking forward to receiving your message !