19 Non-metallic building materials, namely, partitions, pillars, slabs, composite panels, door panels, floor panels, ceiling panels, roofing panels, wall panels, beams, pre-fabricated architectural columns, poles in the nature of concrete poles for use as building materials, posts, wall framing in the nature of non-metal window and door frames, non-metal components for building foundations in the nature of cementitious-based mastics for foundations of buildings; non-metallic reinforcements for concrete and wood building construction, namely, plates, rods and bars, and cladding; concrete; concrete building elements joined by metal connectors, namely, blocks, bricks, posts, slabs, panels; concrete blocks, panels and beams; concrete pipes; storage tanks made of masonry, bricks and concrete; storage tanks of masonry, brick and concrete; accessories, parts and fittings, namely, non-metal clips for use in building and construction that are sold as a unit with the aforesaid goods