1.mp3 board usb sd card 2.FOB price:US $0.95-98.95/pcs ... 4.Payment terms:T/T,Paypal mp3 board usb sd card / manufacturerWelcome to Eastwin! Our PCB board manufacture and PCB ... V-score,Tab-routedBoard Thickness0.2-4.0mm, Flex 0.01-0.25mmCopper Weight1.0, 1.5, 2.0 ozSolder ... *500mmMin Trace/Gap0.10mm, or 4milsMin Drill Hole Diameter0.01'',0.25mm, or 10milsSurface FinishHASL,Nickle,Immersion Gold,Immersion ...