... 3, quick delivery 4, considerate service pcb board for LED display 1-12 layer:FR-4, AluShort lead timeMore than 10 ... 1mil) The max board size:A, Board thickness ≥1.2mm and Not Jack panel: 605*530mm. (HASL board: 605*450mm)B ... , Board thickness ≥ 1.2mm and Jack panel: 550*400mmC, Board thickness (0.5---1.2mm ... , V-CUTCertificates: UL, ISO 9001, SGS pcb board for LED display