New generation---P series LED writing board launched on 2012.Sep 01 2012 New LED writing board Launched on 2012.Sep 01---M sereis, CE RoHs Certification- Frame specification:* Aluminum alloy frame. * Special design frame, the back panel removable.- Screen:Imported harden acrylic 3mm thick. 99% light transmission, 6H harden anti-scratch- Black back ground,plastic&aluminum composite panel 2.5mm ...