... width:0.075mm Specifications:Layer:8-layerThickness:1.2mmFinish Coating:Immersion GoldCopper Size:2 ozSolder mask:GreenMaterial:FR-4Min. Hole Size ... :l.±5%11.Surface finishing:HASL,LEAD-FREE HASL,Immersion gold,Immersion tin,Immersion Silver,Plated gold,OSP,Carbon ink.12.Solder Mask Color:Green ... ,Beveling18.Certificate:UL,ISO9001:2000,ISO14001,SGS,ROHS 8-Layer(Immersion Gold) PCB