... LED display 1, best price 2, high quality 3, quick delivery 4, considerate service pcb board for LED display 1 ... CEM-1, CEM-3, High TG, FR4 Halogen Free,Board thickness: 0.35mm to 3.0mmCopper thickness: 0.5 ... hole: >25.0 um (>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* ...