... electronic information,automobile electronics, communication devices,military gadgets.ProductSingle sided to 12 layers PCBMaterialFR1, FR2, CEM1, CEM3, FR4, ... 0.05mmHole location tol.+/-0.05mmGold thickness0.05um to 1.5umNickel thickness1um to 5umprocess and guarantee makes takes the stress ... will cost too much to modify. Our process gives that all to you!We look forward to the chance to work with you ...