... Directive-compliant, lead-free o One stop service for PCB design, PCB layout, PCB manufacture, components purchasing, PCB assembly, test, packing ... Gold,Immersion Tin,Immersion Silver,OSP,etc.Board Thickness Tolerance±10%Copper Weight Tolerance± 0.25 ozMinimal Slot Width0.12'', 3.0mm ... PCBAOur PCB Assembly ShowsView of Our Workshop led circuit board design