1, controller board with red oil 2, experienced design and copy ... Specificationproviding OEM service to all sorts of printed circuit board assembly1Layer1-30 layer2MaterialFR-4,CEM-1,CEM-3,Hight ... Free,FR-1,FR-23Board thickness0.2mm-7mm4Max.finished board side1500mm*500mm5Min.drilled hole size0.5mm6Min.line width0.075mm ... ,CQC,SGS15profiling punchingRouting,V-CUT,Beveling gold plated fpc pcb board