... can provide you all lines of FPC, flex PCB, flex circuit, flex board, FPC board, FPC circuit, FPC assembly, we are professional FPC factory.1 ... .075/3mil5. Min. Laser Hole Size: 0.075mm/3mil6. Min.board thinkness:- Single sided: 0.07mm- Double sided: 0.12mm- multilayers ... layer18umcopper0.5ozboard thickness0.1mmfinishingENIGmin trace0.1mmmin space0.1mmcertificateUL, ISO, RoHS flex FPC