... partition wall ,roof ,ceiling ,interior &exterior decoration panel ,thermal insulation material because it is high strength , ... ,Extruded polystyreneas core material .XPS density :30kg/cubic meter(adjustable),blue color (adjustable )Facial surface material :magnesium ... other7Cloth finishes8Plaster9Many other 4 Attributes :Comparing the sandwich panel EPS ,it is more stable ,durable and thermal ...