As for competitive prices, we believe that you will be searching far and wide for anything that can beat us. We can state with absolute certainty that for such quality at such prices we are the lowest around for PCB Core, Line Width And Spacing 2mil/2mil PCB , Rogers PCB , High ER PCB , We are always looking forward to forming successful business relationships with new clients around the world. As for aggressive price ranges, we believe that you will be searching far and wide for anything that can beat us. We can easily state with absolute certainty that for such high-quality at such price ranges we're the lowest around for PCB Core, 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.