Dear purchasing manager JSD PCB Co.,Ltd is a circuit board manufacture with middle-size factory located in China. We produce single,double and multi-layer circuit boards with lead time as short as one day. Our company has been in buisness since 2003 and has the experence to help you with any problems that might come up in your pc design. Printed Circuit Boards: FR4,TG,AUL-base,single, double-side and 4--40 multi-layer boardsMaterial: FR-4,HTG FR4, high frequency(Rogers,Teflon,ARLON, TYCONIC),halogen free, different material mixing laminating.Fast delivery time: Double sides:24h 4layers:48h 6/8/10layers:3wd 12/14 layers:4wd If you need more information please go to our web site or give us a call. Yours faithfully Cindy SHENZHEN JSD PCB TECHNOLOGY CO., LIMITED