Explanatory notes
… pitch, etc., in blocks of the kind remelted before use are excluded ( Chapter 27 ) whether or not the materials have … hand, be identifiable as particular articles. The heading includes : (1) Plates, bricks, tiles, flagstones, obtained … of glass fibre, of fabric of man-made fibre or jute, or of aluminium foil) completely enveloped in, or covered on both …