... support Red,White,Yellow,Blue,BlackSilk ScreenDouble-sided or single-sided in white,yellow,black,or negativeSilk Screen Min ... Nickle,Immersion Gold,Immersion Tin,Immersion Silver,OSP,etc.Board Thickness Tolerance±10%Copper Weight Tolerance± 0.25 ozMinimal ... High Standard SMT&Solder Assembly Line---- High density interconnected board placement technology capacity.Quote requirement for pcb&pcb assembly ...