... FR4 material 1 oz copper pcb board 2. Green solder mask, Immersion gold 3. with Competitive priceGeneral Specifications CapabilityMaterial Requirements ... green,white,black,dark brown,yellow,red,blueMin. solder mask clearance0.003”(0.07mm)Thickness0.0005”-0.0007”(0 ... gold plating, immersion silver,immersion tin, Carbon ink,peelable mask 3). Solder mask colour: Green/MATT Green/Blue/Yello/White/Black ...