... FR4 material 1 oz copper pcb board 2. Green solder mask, Immersion gold 3. with Competitive priceGeneral Specifications CapabilityMaterial ... gold,immersion gold,OSP,Gold Finger Palting,Selective thick gold plating, immersion silver,immersion tin, Carbon ... Special requirements: Buried and blind vias, impedance control, thick Cu PCB,selectivity plating gold 30 microinch18). Profiling: Punching, Routing ...