... min hole:0.4mm min line width:4mil PCB/Printed Circuit Board · FR1 Single Sided PCB with Peelable Mask, V-Score ... , Yellow Legend, Hole & Contour Punched. · FR4 Single Sided PCB with CNC Drilled Holes, Black Soldermask, White legend, Slot & Contour Punched. · FR1 ... Legend, Hole and Contour Punched. · CEM1 Single Sided PCB with CNC Drilled Holes, Silver Jumper, Slot & Contour Punched. · FR1 Single ...