1.FR-4 green color solder mask single side pcb bare board; 2.Meet ROHS, UL, ISO9001:2008, SGS test. 3.Rigid ... PCB bare board. pcb RODUCTION CAPABILITYSolder Mask Types: Green, White, Blue, Red, Matt Green, Matt Black etc.Surface Finishing ... of Layer1-12LayersMaterialFR-4, AL PCB, CEM-1, Taconic, RogersFinish Board Thickness0.2mm-3.2mm(8mil-126mil)Copper Thickness1/2 oz ...