1.FR-4 single side 1 layer pcb bare board. 2.Meet ... , UL, SGS. ISO9001:2000. pcb PRODUCTION CAPABILITYLayers: 1-20 layersMaterial: FR-4, Aluminium Base, Rogers, Taconic, TeflonFinish Board Thickness: 0.2mm ... -layer,high frequency,MCPCB,metal-backed PCB,welcome your enquiry. FR-4 single side 1 layer pcb bare board