... 1Layer1-28 layer2MaterialFR-4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,Aluminum, Ceramic, Rogers,F4B,Teflon3Board thickness0.2mm-6 ... /Gold,Osp,Gold Plating9Copper thickness0.5-4.0oz10Solder mask colorgreen/black/white/red/blue/yellow11Inner packingVacuum packing,Plastic bag12Outer packingStandard carton ...