19 sand, gravel, crushed stone, asphalt, bitumen, cement, gypsum for use as building materials, plaster, concrete, marble blocks for construction; building materials, namely, manufactured veneers, slabs, walls of concrete, gypsum, clay, potters' clay, stone, marble, wood, plastics and synthetic materials for building, construction, road construction purposes; prefabricated non-metallic buildings; non-metallic building materials, namely, poles not of metal for power lines; barriers not of metal, namely, portable non-metal free-standing barriers; building materials, namely, non-metal building panels and non-metal sheets, namely, wooden facing sheets, common sheet glass; bitumen cardboard coatings for roofing; bitumen coating for roofing; doors and windows of wood and non-metal synthetic materials; traffic signs not of metal, non-luminous and non-mechanical, for roads; monuments and statuettes of stone, concrete and marble; building glass; prefabricated swimming pools not of metal; aquarium sand; Landscaping products, namely, decorative non-metal garden fences, soil separators being decorative non-metal lawn edging, decorative brick-look borders being landscape edgings; statues and figurines of clay