Graphite polystyrene foam board, or graphite EPS board, is a high-performance thermal insulation material. It takes polystyrene resin as the substrate, adding the right amount of graphite and other auxiliary agents, after heating pre-hair, ripening, molding, curing and cutting and other technological process made. Graphite EPS board has been widely used in construction, heat insulation and fire resistance with its excellent thermal insulation performance, good size stability and compressive strength.