... ,1OZ,HASL, White Solder Mask; PCB+LED+SMT the whole service with very competitive price Brief Introduction:Specialized PCB ... years’ experience)Provide the whole service as “PCB+LED+SMT”PCB Boards with UL, ROHS, SGS certificateTop quality, competitive price ... Solder Mask, Board SizeQuantity for month/yearHigh and low power LED TypeDetailed Specification of PCB Manufacturing 1Layer1-30 layer2MaterialFR-4 ...