... the whole service as “PCB+LED+SMT”PCB Boards with UL, ROHS, SGS certificateTop quality, competitive price, OEMRequirements for quoting ... Free,FR-1,FR-2,Aluminum3Board thickness0.2mm-7mm4Max.finished board side500mm*500mm5Min.drilled hole size0.25mm6Min.line width0.075mm(3mil ... ,V-CUT,Beveling16Assembly ServiceProviding OEM service to all sorts of printed circuit board assembly LED Board with SMD LED