We retain improving upon and perfecting our items and repair. At the same time, we perform actively to do research and progress for low temperature heat exchanger, industrial air conditioners , Heat recovery units , Basement Ventilation Central ,passitive house ventilation system . Since establishment in the early 1990s, we have set up our sale network in USA, Germany, Asia, and several Middle Eastern countries. We aim to be a top class supplier for worldwide OEM and aftermarket! The product will supply to all over the world, such as Europe, America, Australia,Angola , Austria ,Oman , Auckland .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 and solutions for our customers.