17 Polyurethane in the form of blocks, bars, sheets and pellets for use in the construction of surfboards, toilet floats, boats, floats for fish nets and buoys, for use in the manufacture of architectural foam products, namely trims, crowns, wall caps, pilaster caps, keystones, exterior rosettes, columns, balustrades, arches, fireplace mantels, window sills and for use as packing materials for the protection against shock or vibration