FPC Flexible-rigid Board Technical discription: layer:Rigid 4Layers,Flexible 1 Layers materialPI+FR4 Board thickness: Rigid 1.6mm,Flexible 0.15mm Surface finishimmersion gold Min through hole0.2mm(8mil) Min line width0.15mm6mil) Min line space0.127mm(5mil) Special requirementsFlexible-rigid Board RoHS