... Contour Punched.· FR1 Single Sided PCB with Flash Gold, Peelable Mask, White Legend, Hole & Contour Punched.· FR1 Single Sided PCB with Green ... FR4 Single Sided PCB with CNC Drilled Holes, Black Soldermask, White legend, Slot & Contour Punched.· FR1 Single Sided PCB with Carbon ... Jumper and Carbon Key Pad, White Legend, Hole and Contour Punched.· CEM1 Single Sided PCB with ...