1)double side pcb 2)8 years of experience in PCB industry 3) ... services 4)UL.SGS.ISO9001,ROHS,QS9000 and ISO TS16949 double side pcb Immersion gold PCBOur PCB got UL,SGS,ROHS,ISO9002 ... Plating9Copper thickness0.5oz Min.,5.0oz Max10Solder mask colorgreen/black/white/red/blue/yellow11Inner packingVaccum packing,Plastic bag12Outer packingstandard carton paking13Hole ...