Polyurethane foam of varied Density can be used in Artificial bone also Decoration and Imitation due to its, Low cost, Light weight, Classic, elegant and uniform nature, No moisture absorption, and Environment protection. Low cost of imitation, with surface painting, can be finished and installation time is very short, can be planed, sawed, nailed and glued by anybody. Light weight, good resilience, light and hard. Entirety, classic, elegant and uniform design can be achieved.