... insulation 2)high compressive strength,strong cementing power XPS extruded plastic board conforms to the national standard GB/T 10801.2-2002 ... power,convenient construction,competitive price and so on, XPS extruded plastic board is widely used for insulation works in building's wall ... is a green energy-saving environmental protection product.Size:roof board: 1800*600*20,1800*600*25, 1800*600*30,1800 ...