... SGS standards 3,quality grade AAA with 100% vrigin hard plastic sheets for construction acrylic applications:1 Advertising,signboards,billboards2 Lighting,light ... racks4 wall separation5 Business exhibition equipments6 Decoration7 Insulation materials for electrical appliancesacrylic properties:1,good resistance to climate , ... is high5,easy to maintain and to clean hard plastic board for construction