Building materials, namely, door frames, profile and skirting floor boards, panels, door panels made of concrete, gypsum, clay, potters' clay, stone, marble, wood, plastics and synthetic materials for building, construction, road construction purposes; portable non-metallic buildings, portable 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; bituminous cardboar...