Bear "Customer first, Excellent first" in mind, we operate closely with our customers and supply them with efficient and expert services for Ventilation system solutions, HVAC AHUs , ALUMINUM FOIL HEAT EXCHANGERS , industrial air conditioners ,air handing system . Good quality and competitive prices make our products enjoy a high reputation all over the word. The product will supply to all over the world, such as Europe, America, Australia,Senegal , luzern ,Wellington , Libya .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.