19 Non-metallic construction elements, namely, supports; non-metallic structures for use as constituent parts of buildings, bridges, roads, parking facilities, walkways, roofs, floors, and handrails; non-metallic composite structures for use as constituent parts of buildings, bridges, roads, parking facilities, walkways, roofs, floors, and handrails; structures made from plastic for use as constituent parts of buildings, bridges, roads, parking facilities, walkways, roofs, floors, and handrails; structures made from concrete for use as constituent parts of buildings, bridges, roads, parking facilities, walkways, roofs, floors, and handrails; structures made from polymers and polymer composites for use as constituent parts of buildings, bridges, roads, parking facilities, walkways, roofs, floors, and handrails; non-metallic portable structures for use as constituent parts of buildings, bridges, roads, parking facilities, walkways, roofs, floors, and handrails; telegraph poles, not of metal; utility poles, not of metal; poles and masts of non-metallic materials for electric power lines; concrete; reinforced concrete; polymer concrete; concrete building materials, namely, blocks, bricks, posts, slabs, and panels; non-metallic flooring panels; non-metallic sheet materials for building; non-metal roof coverings and flashings; non-metallic shapes, surface coverings, sleeves for insulation and protection against fire, poles, telegraph poles, ladders, tanks, rail attachments, curbs, cross arms, hoses, containers, walkways, bridges, handrails, guardrails, barriers, structures, pipes, dampers, covers, access structures, decking, planking, panels, gratings, platforms, piers, ports, harbors, decks, ship separators, mooring dolphins, pipe piles and guide walls; fire protection materials for use in building, namely, non-metal fire-resistant boards and panels; replacement and structural parts and fittings for all the aforesaid goods