Our enterprise since its inception, constantly regards product good quality as organization life, constantly improve production technology, strengthen merchandise high quality and continuously strengthen enterprise total good quality administration, in strict accordance with all the national standard ISO 9001:2000 for 2 Horn Surround, 17"Speaker Surround Repair Kit , 21"Speaker Surround , 5.25"Edge Folded Ring Surround Repair Kit ,15"Speaker Surround Repair Kit . If you are interested in any of our items, please don't hesitate to contact us and take the first step to build up a successful business relationship. The product will supply to all over the world, such as Europe, America, Australia,Peru, Swiss,Uruguay, Netherlands.If you give us a list of merchandise you are interested in, along with makes and models, we can send you quotations. Remember to email us directly. Our goal is to establish long-term and mutually profitable business relationships with domestic and overseas clients. We look forward to receiving your reply soon.