continue on to further improve, to make sure product top quality in line with market and consumer standard requirements. Our firm has a excellent assurance program have already been established for Ventilation Fan System, Aluminum Shutter Fan , Greenhouse Curtain Motor , Steel Rack Arm ,Roll Up Curtain . For further inquires please do not hesitate to contact us. Thank you - Your support continuously inspires us. The product will supply to all over the world, such as Europe, America, Australia,Somalia , luzern ,New Zealand , Holland .The president and all the company members would like to provide qualified goods and services for customers and sincerely welcome and cooperate with all native and foreign customers for a bright future.