Building materials made of glass fibres; building materials of plastic material; building materials, not of metal; building panels, not of metal; composite panels of non-metallic materials for use in building; decorative building products manufactured from plastics; flooring of plastic materials for building; flooring of reinforced plastic materials for building; laminated building materials (non-metallic); laminates of non-metallic materials for use in building; non-metallic composite materials for use in building; non-metallic composite sheets for building purposes