19 Reinforcements, not of metal, for construction being reinforcing materials, not of metal, for building; non-metal swimming pools; non-metallic materials for building namely, building panels, not of metal, pillars, not of metal, for building, slabs, not of metal, for building, tiles, not of metal, for building, linings, not of metal, for building, framework, not of metal, for building, wall claddings, not of metal, for building, wall linings, not of metal, for building; concrete; shuttering, not of metal, being non-metal shutters for concrete; concrete building elements namely, concrete panels, concrete blocks, concrete poles, concrete walls, concrete floors, concrete pipes, concrete sculptures; fences, not of metal; construction materials not of metal namely, building panels, not of metal, pillars, not of metal, for building, slabs, not of metal, for building, tiles, not of metal, for building, linings, not of metal, for building, framework, not of metal, for building, wall claddings, not of metal, for building, wall linings, not of metal, for building, bituminous roof coatings; building panels not of metal; swimming pools, not of metal; storage tanks of masonry