Dear friend, Greetings! This is Anne from Shenzhen JSD PCB Technology CO., Ltd. We are printed circuit boards Manufacturer providing Rigid boards, Flexible boards and Rigid-Flex boards. Our strenghs as follow: 1.Quick response, we will reply Customer's enquiry within 1 hours; 2.Board thickness VS drill size: 12:1 3.Line width/spacing: 2.5/3mil 4.Min hole size: 0.1mm(laser drilling） For more details, please contact us. Best regards, Anne Ph/Skype/Wechat: +86-17092791810 Email: Anne@jsdpcb.com Website: http://www.jsdpcb.com