Detailed Product Description Printed Circuit BoardLayer4Board MaterialFR-4Board Thickness1.6 mmCopper Thickness1 OZSurface TreatmentROHS, lead-free HALMin Hole0.2 mmMin Line Width4 milMin Line Space4 milSolder Mask greenSilk ScreenwhiteOutlineroutingNote: We can provide PCBs range from 1 layer up to 20 layers, flexible PCB, quick-turn PCB, SMT business with good quality and competitive price.