... PCB,Rigid-Flex PCB2.Base Material:PI,PET3.Board Thickness:0.06mm-0.6mm4.Copper Thickness:18 um,35 um,70 um5 ... :250mm×500mm9.tolerance:Line Width±20%,Hole Size±3mil,Outline±0.13mm,Except special10.Inspection Standard:According to IPC-6013,IPC ... .Disk Drive:Hard disk and floppy disk are depending on the high flexibility and 0.1mm thickness of FPC,data load fast.