... -based, Cu-based) HDI PCB assembly 2 layer,1.6mm,immersion gold 2 layer,1.6mm,immersion Tin 4layer,1.6mm,immersion gold,plated slot, 4layer,1.6mm,immersion gold,half holegold finger 4layer ... .d;Quotation service : against supplied Gerber files and requests of details of each project, you would be quoted within 12 hours .maybe ...