FIELD: construction.
SUBSTANCE: panel comprises a solid sheet body made of polystyrene or high impact polystyrene, fully enclosing a plastic honeycomb core made of a thermally activated foamable plastic granulated material, at that, the maximum panel front surface area is greater than 1 m2.
EFFECT: improved performance such as water resistance, resistance to scratching, durability, and lightness.
9 cl, 5 dwg
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