Explanatory notes
… cut otherwise than rectangular (including square), ground, polished, chamfered, drilled, varnished, enamelled, moulded … facing and damp course slates, not only of special shapes (polygonal, rounded, etc.), but also in rectangular … Granules, chippings and powder of slate, not artificially coloured ( heading 25.14 ). (b) Mosaic cubes and the like, …