The main component is aluminum alloy, and more than 95% of the materials can be recycled and recycled.
The sandwich structure is similar to the aluminum composite panel, which is composed of aluminum plate + aluminum honeycomb core + aluminum plate bonded together.
The regular hexagon of the honeycomb requires little material but is strong, supported by multiple "T" shaped backbones formed by the honeycomb.  
Size: 4ft X 8ft Total Thickness: 8mm Thick Aluminum Plate Thickness: 0.25/0.4mm