Hi friend, Have a nice day! This is Anne from Shenzhen JinShengDa Electronics & 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） "Delivery on time" is our commitment to the customer. Expedited orders if exceed the expected time, we will free for expedite fee. For more details, please contact us. Best regards, Anne TEL：0086-075523593797 Email: Anne@jsdpcb.com Website: http://www.jsdpcb.com