... ,HASL lead-free,HAL,Flash gold,immersion gold,OSP,Gold Finger Palting,Selective thick gold plating, immersion silver,immersion tin, ... Carbon ink,peelable mask 3). Solder mask colour: Green/MATT Green/Blue/Yellow/White ... and blind vias, impedance control, thick Cu PCB,selectivity plating gold 30 microinch18). Profiling: Punching, Routing, V-CUT, Beveling19 ...