Magneisum perlite board, MGO foam board fireproof door core Thickness: 25mm, 36mm, 48mm, 50mm Size: 915mm* ... as the substitution of wood.Applications: 1) Advertising field: sign board, billboard, exhibition display, silk screen printing, laser engraving material.2 ... and transit: internal decoration of ship, plane, bus, train, roof wing-room or others, compartment core layer.