... display 1, best price 2, high quality 3, quick delivery 4, considerate service pcb board for LED display 1-12 ... layersMaterial type: FR-4, CEM-1, CEM-3, High TG, FR4 Halogen Free,Board thickness: 0.35mm to ... (board thickness>1.2mm)F, Six-layer pcb: 430*430mmG, Eight-layer pcb: 430*430mmH, More than eight layers: 270 ... Punching, Routing, V-CUTCertificates: UL, ISO 9001, SGS pcb board for LED display