... quality 3, quick delivery 4, considerate service pcb board for LED display 1-12 layer:FR-4, AluShort lead timeMore than ... ---1.2mm): 400*350mmD, Board thickness (0.4mm): 350*300mmE, Single-sided board: 606*530mm (board thickness>1.2mm)F, Six ... , Routing, V-CUTCertificates: UL, ISO 9001, SGS pcb board for LED display