... for your reference, for more messages, pls contact with us freely!ItemSpecification MaterialFR-4 / Hi-Tg FR ... Trace/Space Width 6 mil,+/-0.15mm(tolerance)SMD Pitch 10 milBGA Pitch 20 milMin Pad Space ... green,blue,red,yellow,black,white(LPI/MATT.,UL 94 V0 approved) Surface Finish HALtin height ... tolerance) Certificate SGS,ISO,ROHS,UL, Welcome to visit WALBOND ! loudspeake and radiator PCB with UL standard