... are ready for embracing a new future Composite board of the specifications of the:thickness: color plate thickness(mm)0.3-0. ... ,1150,1000,950,1130 roof board: 950,980 characteristics of the color composite sandwich plate :high strength,physical . corrosion resistance ... .Now it is widely used in large workshop,purifying workshop,villas,offices,supermarket,the cold storage,the virtual kiosk,the roof,and ...