FR-1copper clad laminated sheet/CCL consist of bleached wood pulp paper, impregnated with flame retardant phenolic-epoxy resin and clad with electrolytic copper foil.It has high electrical stability, good flame retardancy, good dimension stability and smoothness, good punching ability and widely used for Hi-Fi acoustic devices, color TV sets and other electronic appliances. Material: paper based Size: 40*48inch Board Thickness: 0.8mm,1mm,1.2mm,1.5mm,1.6mm Copper Thickness: 18um,25um,35um,70um Color: brown