1, controller board with red oil 2, experienced design and copy service 3, fast delivery 4, strictly QC control PCB ... Halogen Free,FR-1,FR-23Board thickness0.2mm-7mm4Max.finished board side1500mm*500mm5Min.drilled hole size0.5mm6Min.line width0.075mm(3mil ... ,ISO9001,ISO14001,ROHS,CQC,SGS15profiling punchingRouting,V-CUT,Beveling led writing board