1.FR-4 single side 1 layer pcb bare board. 2.Meet ROHS, UL, SGS. ... FR-4, Aluminium Base, Rogers, Taconic, TeflonFinish Board Thickness: 0.2mm-3.2mm (8mil-126mil)External ... AL PCB, CEM-1, Taconic, RogersFinish Board Thickness0.2mm-3.2mm(8mil-126mil)Copper Thickness1 ... single-sided,double-sided ,multi-layer,high frequency,MCPCB,metal-backed PCB,welcome your enquiry. FR-4 single side 1 layer pcb bare board ...