... Weight Outer Cu weight 0.5oz ~ 3.0oz Inner Cu wight 0.5oz ~ 3.0oz Laminate Materials FR-4,FR-1 ... ,,FR-2,CEM-1,CEM-3 Board Cutting Max. number of layers 8 Min. thickness ... )Drilling Min. Size 0.0078”(0.2mm) Max. Size 0.3”(8.0mm) Drill Deviation ±0.002” (0.050mm) PTH ... If you are confused with pcb,kindly contact me for more details! 1.6MM Thickness ,LED car light,FR4 Single Sided ...