... Double Face Aluminum LED Advertising Sign Panel,Aluminium LED Snap Frame,Aluminum LED Light Box CE,RoHS Item Name: DC12V A4 ... Front Opening Double Face Aluminum LED Advertising Sign Panel,Aluminium LED Snap ... .6mm)FR-4Range of Application:Supermarket, Bar, Hotel, Exhibition Hall, Advertising Display, Hospital, Bank, Chain Store, Restaurant, Airport, Subway, Dock ...