19 Asphalt, pitch and bitumen; alabaster; concrete, wood or plastic crash barriers for road; concrete and wood beams; concrete blocks; board material made of polyethylene used as a wood substitute; bricks; portable non-metal buildings; prefabricated non-metal buildings; non-metal window casings; non-metal ceiling panels, cement mixes; ceramic enamel tiles; non-metal chimneys; asphalt roof coatings; bitumen roof coatings; concrete building materials namely blocks, bricks, posts, poles, slabs and panels