... ROHS, UL, SGS. ISO9001:2000. pcb PRODUCTION CAPABILITYLayers: 1-20 layersMaterial: FR-4, Aluminium Base, Rogers, Taconic, TeflonFinish ... External Copper Thickness: 35um-210um (1OZ-6OZ)Internal Copper Thickness: 17um-140um(1/2OZ-4OZ)Copper Plating Hole: 18um-40umMin ... OSP. ItemSpecificationsNumber of Layer1-12LayersMaterialFR-4, AL PCB, CEM-1, Taconic, RogersFinish Board Thickness0.2mm-3.2mm(8mil-126mil ...