... ,FR-1,FR-2,Aluminum3Board thickness0.2mm-7mm4Max.finished board side500mm*500mm5Min.drilled hole size0.25mm6Min.line width0.075mm ... mask colorgreen/black/white/red/blue/yellow11Inner packingVacuum packing,Plastic bag12Outer packingStandard carton packing13Hole tolerancePTH:±0.076,NTPH:±0 ... ServiceProviding OEM service to all sorts of printed circuit board assembly LED Board with SMD LED