Our firm since its inception, normally regards item top quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for 7 Speaker Cone, 3"Passive Radiator , Speaker Replacement Cone Kit , 13"Speaker Surround ,4"Speaker Cone . We warmly welcome business partners from all walks of life, expect to establish friendly and cooperative business contact with you and achieve a win-win goal. The product will supply to all over the world, such as Europe, America, Australia,Muscat, Jeddah,Peru, Bangkok.Look forward to the future, we'll focus more on the brand building and promotion . And in the process of our brand global strategic layout we welcome more and more partners join us, work together with us based on mutual benefit. Let's develop market by fully utilizing our in depth advantages and strive for building.