The foam board is made of ps (polystyrene) particles through foaming to generate a foam board core, with super smooth white paper on both sides. Hard, light, not easy to deteriorate, easy to process, it is highly versatile and widely used in advertising display promotional posters, aircraft model, architectural decoration, culture and art and packaging. In terms of advertising, it is generally used for the exhibition, display and announcement of product publicity information release mounting lining board, a large-scale unified event publicity board.