With a sound enterprise credit history, exceptional after-sales services and modern production facilities, we've earned an outstanding track record amongst our consumers across the whole world for Aluminum Cone Woofer, 21"Speaker Cone , Edge Folded Ring For Sub Woofers , Speaker Replacement Cone ,1"Foam Surround Repair Kit . We honor our core principal of Honesty in business, priority in service and will do our best to offer our customers with high quality products and excellent service. The product will supply to all over the world, such as Europe, America, Australia,Washington, French,Ecuador, Poland.Our Company has qualified engineers and technical staff to answer your questions about maintenance problems, some common failure. Our product quality assurance, price concessions, any questions about the items, Be sure to feel free to contact us.