... Solder Mask, HASL Finish, Contour Punched.· FR1 Single Sided PCB with Flash Gold, Peelable Mask, White Legend, Hole & Contour Punched.· ... Slot & Contour Punched.· FR1 Single Sided PCB with Carbon Jumper and Carbon Key Pad, White Legend, Hole and Contour Punched.· ... Sided PCB with CNC Drilled Holes, Silver Jumper, Slot & Contour Punched.· FR1 Single Sided PCB with Carbon Jumper, Gold Flash Key Pad, ...