Our enterprise since its inception, often regards solution excellent as enterprise life, continually strengthen output technology, enhance product high quality and continually strengthen organization total high-quality administration, in strict accordance using the national standard ISO 9001:2000 for Climate Control Equipment, Humidity Extractor Fan , Inlet Intake , Panel Fans For Dairy Barn ,Farrowing Crates . As an expert specialized in this field, we are committed to solving any problem of high temperature protection for users. The product will supply to all over the world, such as Europe, America, Australia,Malta , Houston ,Palestine , France .We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.