... and the Facing Board Fireproof , thus,Sandwich Panels have excellent Fire Resistance ability.2. The Panel also has advantages such as Water ... are all sound insulation , so being as wall the sandwich panel has good Noise Resistance Capacity , can insulate 30-60dB. ... material , nails and screws are also available in MgO Sandwich Panel .6. The Sandwich Panel has Light Weight and can in Different Size , ...