IT1061735BIT2561470AIT2561470AIT1061735BIT 1061735 BIT1061735 BIT 1061735BIT 2561470 AIT2561470 AIT 2561470AIT 2561470 AIT2561470 AIT 2561470AIT 1061735 BIT1061735 BIT 1061735B
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A lightweight sheet or panel of composite materials includes a filling comprising a plurality of individual tubular elements of fibrous material arranged with their axes parallel to one another and each in contact with two or more other elements, the elements being held together by adhesive or binding material.
Building unit comprising laminated panel of synthetic resin and fireresistant sheet material,method of joining two said units and buildings constructed thereform