Building elements made of non-metallic materials; Building materials of plastic material; Building materials, not of metal; Plastic mouldings for building construction; Reinforcement Non-metallic materials for building; Reinforcement Non-metallic materials for construction; Reinforcement of non-metallic materials for concrete; Sections of reinforced plastics for use in building; Acoustic building materials other than for insulation; Building materials made of glass fibres; Building materials of concrete reinforced with plastics and glass fibres; Mouldings of non-metallic materials for use in building; Non-metallic building materials for civil engineering; Non-metallic building materials having acoustic properties; Non-metallic building materials having insulating properties; Non-metallic building materials having sound deadening properties; Non-metallic civil engineering structures; Non-metallic construction materials; Non-metallic ties for cavity walls; Non-metallic ties for use in brickwork; Non-metallic ties for use in building; Precast concrete building elements; Profiles in plastics for holding reinforcement in concrete; Profiles of plastic for positioning reinforcement for concrete; Profiles of plastic for positioning reinforcement for concrete; Reinforcement Non-metallic materials for civil engineering; Reinforcement Non-metallic materials for construction; Reinforcing bars, not of metal for use in brickwork; Reinforcing bars, not of metal for use in concrete; Sections of plastics for use in building; Sections of reinforced plastics for use in building