... toughness 2.strong impact resistance 3.Non-flammable,damp exterior decoration grc cornice1,Material:glass-fiber reinforce composite2,Hight ... and sound and heat insulated .it cn be process by nailing ,adhering and patching,and therefore,it is easy ... ,Column,Relief MaterialGRC Color Gray Application Construction decoration InstallationFix with metal clips or screws exterior decoration grc cornice