... football stadium, sound insulation board , agricultural greenhouse and display of advertisement etc.1. Max width :2100mm2. Length:no limited ... sunshade for office building ,etcskylight,lighting for corridors ,balcony,passages and subway entries ,walkways.Advertising lamp boxes ,sign ... to GB 8624-1997 the fire retardant classification of polygao project sun sheet is B1.Impactresistance:Its outstanding ...