... tube metal8) Roof panel: corrugated sandwich panel with color steel two sides and EPS foam filling9) Wave height: 35mm10) Trim of ... Insulation, heat insulation, bearing, waterproof up, and has rich colors, beautiful shapes.3 FunctionIt is widely used in bearing structure ... , heat insulation, bearing, waterproof up, and has rich colors, beautiful shapes.3 FunctionIt is widely used in bearing structure ...