19 Building materials; wood, plastics, glass reinforced, and composite building materials; masonry reinforcing materials namely masonry blocks, masonry tanks, building stone, concrete building elements and wood for building; concrete, shuttering for concrete, concrete building elements; grout, mortars for floors; bonding mortar for building purposes; building strips, not of metal; binding materials; walling and building blocks; constructional components of reinforced cement mortar; brick ties, masonry ties, wall ties, non-metallic and plasters for use in construction; non-metallic rods and supports for supporting buildings and/or masonry; non-metallic rods and supports for reinforcing buildings and/or masonry; parts and fittings for all the aforesaid goods.