Flex-rigid PCB,PCB board,flexible PCB board,PCB manufacturer. up to 8layers,copy PCBA/PCB/FPC,PCB/FPC design,FPC,circuit board ... 13um~105um. (RA and ED copper) 7) Cover-layer: Polyimide and polyester (solder mask printing is available) 8 ... 4, mylar and polyimide 10) Surface finishes: ENIG,Plated gold ,OSP PREFESSIONAL SUPPLY fpc flex pcb,fpc flexible circuit,multi-layer fpc,multi layer pcb ...