19 Non-metallic shelter structures; binding agents for the manufacture of non-metallic construction materials, namely mortar and mortar mix for building purposes; aggregates, namely cement aggregates; clay sold in powdered form for use in the manufacture of non-metallic construction materials; non-metal slabs and bricks of clay as a construction material; reinforcing materials not of metal for building; asphalt; demarcation barriers of non-metallic materials in the nature of concrete industrial safety, parking delimitation, pedestrian and car traffic control barriers and concrete crash barriers; swimming pools, not of metal; concrete; casting concrete; reinforced concrete; polymer concrete; premixed ready-to-use concrete; ready-to-use concrete; bitumen; cement blocks; concrete blocks; non-metallic construction blocks in the nature of concrete blocks, paving blocks, refractory blocks, insulating concrete and composite blocks; bollards of concrete and cement; construction materials in the nature of bricks, including mud bricks; busts of concrete; pebbles; limestone; calcite; ash of clay; non-metallic window, door, roof, garage and portal frames being construction elements; framework, not of metal, for building; screed in the nature of concrete sealers being floor patching materials; lime in the nature of lime building materials and hydrated lime for building and construction purposes; chimneys not of metal; slaked lime in the nature of non-agricultural lime for use in construction; concrete and cement tiles; cement; partitions, not of metal, for building; cement for construction; buildings, not of metal, namely non-metallic transportable buildings, transportable precast concrete buildings; grouts; concrete pipes; fences, not of metal; concrete paving slabs; cement slabs; prefabricated building components, not of metal, for on-site assembly, namely walls, concrete and composite blocks, architectural columns, staircases, stairs, concrete and composite poles, slabs, concrete pipes, concrete floors, panels, porches, decorative moldings and decorative trim; construction and building elements and materials of sand, stone, rock, clay, minerals and concrete namely walls, blocks, architectural columns, staircases, stairs, poles, slabs, concrete pipes, concrete floors, panels, porches, decorative moldings and decorative trim; coatings being building materials in the nature of cement, asphalt and concrete coveringsfor use on roofs, walls and pavements; aggregates for use in concrete preparation in the nature of cement aggregates; gravel; non-metallic safety barriers in the nature of crash barriers for roads and crowd control barriers; non-metallic minerals for use in construction and building; mortar for building; ready-mixed mortars for building; concrete walls; concrete panels; posts of cement and concrete; posts, not of metal; prefabricated houses not of metal; art objects being works of art of stone, cement, concrete and marble; stone and rock used in building; concrete paving stones; parapets of non-metallic materials in the nature of low protective walls or barriers at the edge of balconies, roofs and bridges; concrete and cement floors; slabs of concrete; concrete beams; beams, not of metal; textured concrete finishing products, namely self-levelling concrete for use in building construction; quartz; roof coverings of concrete; wall coverings of cement in the nature of wall panels not of metal; exterior coatings of fibre cement for use on roofs, walls and pavements; sand; sands for use in preparing concretes; silica stone and cement for construction; terra-cotta as a building material