1.thermal and sound insulation 2.non-deforming 3.fire-proof 4.beautiful and dignified Characteristics:1. Good Thermal Insulation, an energy saving material2. Good Fire Resistance: A1 grade for total panel3. Special Connection Design: Screw concealed connection4. Graceful Finish: embossment, small wave, big rib and flat finish5. Advance Machine: The longest main machine6. Strict Workshop ...