... Nickle,Immersion Gold,Immersion Tin,Immersion Silver,OSP,etc.Board Thickness Tolerance±10%Copper Weight Tolerance± 0.25 ozMinimal ... Slot Width0.12'', 3.0mm, or 120milsV-Score Depth20-25% of board thicknessDesign File FormateGerber RS-274, ... High Standard SMT&Solder Assembly Line---- High density interconnected board placement technology capacity.Quote requirement for pcb&pcb assembly ...