... film 2)Fireproof,waterproof,wear-resistant; 3)Hard and not easy deformation; Material:Usually the indication is:Polystyrene/ ... cooper paper(PS/double copper paper)Thickness:1-12 millimetersKT board color:White, red, yellow, green, gray, blue, ... , specification is complete.Use:Widely used in aspects and electro-optical,electronic,advertisement demonstration promotion,construction decoration,cultural ...