... price 2, high quality 3, quick delivery 4, considerate service pcb board for LED display 1-12 layer:FR-4, AluShort ... lead timeMore than 10 years factory experienceISO9001, ISO14001,RoHS,UL,TS16949, SGS TestFactory Manufacture Capability:Layer: 1 to 12 layersMaterial type ... *530mm (board thickness>1.2mm)F, Six-layer pcb: 430*430mmG, Eight-layer pcb: 430*430mmH, More than eight layers: 270*280mm ...