... years’ experience)Provide the whole service as “PCB+LED+SMT”PCB Boards with UL, ROHS, SGS certificateTop quality, competitive price, ... month/yearHigh and low power LED TypeDetailed Specification of PCB Manufacturing 1Layer1-30 layer2MaterialFR-4,CEM-1,CEM-3, ... gold Inmersion Silver/Gold,Osp,Gold Plating9Copper thickness0.5-4.0oz10Solder mask colorgreen/black/white/red/blue/yellow11Inner packingVacuum ...