... .Thickness:10-13mm 3.Panel:Silkscreen ,engraving 4.Size: A1,A2,A3,A4A5 5.Lighting source: LED Crystal Slim Light-box ... )Panel:Silkscreen ,engravingSpecification: Usual size,special sizes are availableSize: A1,A2,A3,A4A5Application: Advertising or docoration purposes of shopping center ,super ...