4-Layer, Immersion Gold Gold fingers-PCB Multilayer PCB, 4 Layer PCB Board, Multilayer FPC, Immersion Gold PCB, Gold Fingers PCB, OEM PCB Manufacturer Layer/Board thickness: 4L/1.6mm Suface Finish: Immersion Gold Trace/Space: 5/5mil Smallest Hole Diameter: 0.2MM Golder fingers PCBMAIN can produce multilayer hasl PCB including 2 layer flexible PCB, 6,4,8,10,12 layer PCB board, multilayer FPC, immersion gold PCB, gold fingers PCB and other high density multilayer PCB.
