Structures and transportable buildings, not of metal; building and construction materials and elements, not of metal; buildings, not of metal; structures made of non-metallic materials; framework, not of metal, for building; posts, not of metal; framework, not of metal, for building; scaffolding, non-metallic; beams, not of metal; construction elements of plastic; building materials, not of metal; building sections (non-metallic -); blocks (non-metallic -) for construction; stabilisation fabr...