... process capacity for your reference, for more messages, pls contact with us freely!ItemSpecification MaterialFR-4 / Hi-Tg FR-4 / Lead ... /CEM-1/AluminiumLayersingle layer,double layer,multi-layer(4-10)Board Thickness0.3mm-3.0mm,+/-0.1mm(tolerance)Copper Thickness1/2OZ ... %(tolerance) Certificate SGS,ISO,ROHS,UL, Welcome to visit WALBOND ! lcd display timer control PCB