19 Macadam; Sandstone pipes; Semi-worked sandalwood; Sandstone and cement tubes; Sand; Sand for use in construction; Sand for use in preparing concretes; Sand for use in preparing mortars; Sand, except foundry sand; Sandbags; Sandstone; Sandstone for building; Sandstone pipes; Silver sand; Sandstone road and floor surfacings; Containers of concrete; Concrete; Concrete for casting; Blocks of concrete; Concrete floors; Concrete forms, namely, non-metal casting forms for concrete; Concrete paving elements, namely, concrete pavers; Concrete building elements, namely, concrete poles for use as building materials; Building elements made of concrete, namely, concrete poles for use as building materials; Concrete building materials, namely, concrete poles for use as building materials; Building materials of concrete reinforced with plastics and glass fibres, namely, blocks, bricks, posts, slabs, panels; Ready mixed concrete; Ready mixed concrete to be cast on site; Preformed concrete building elements, namely, concrete poles for use as building materials; Concrete paving stones; Concrete aggregates, namely, aggregates for use in the preparation of concrete; Concrete slabs; Cast concrete decorative articles, namely, moldings and trim for use in building construction; Raw materials for use in concrete, namely, concrete mix; Synthetic concrete; Natural stone; Bollards of natural stone; Porphyry; Artificial stone; Works of art of stone, concrete or marble; Busts of stone, cement or marble; Figurines of stone, concrete or marble; Luminous paving blocks, not of metal; Reconstituted stone; Stone; Stone, rock, clay and minerals for use in building and constructions; Wall stone; Stones; Stone chippings; Aggregates, namely, aggregate material composed of marble and cement for swimming pool finishes; Rock grit; Boulders; Artificial stone; Stone roofing tiles; Flagstones