Sand, gravel, crushed stone, asphalt, bitumen, cement, gypsum, plaster, concrete, marble blocks for construction, included in this class; Building materials (as finished products) made of concrete, gypsum, clay, potters' clay, stone, marble, wood, plastics and synthetic materials for building, construction, road construction purposes, included in this class; non-metallic buildings, non-metallic building materials, poles not of metal for power lines, barriers not of metal; natural and synthetic coatings in the form of panels and sheets, being building materials; bitumen cardboard coatings for roofing; bitumen coating for roofing; doors and windows of wood and 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 (structures); Aquarium sand