19 Trap doors (non-metallic -); inspection chambers made of non-metallic materials; suspended ceilings (non-metallic -); boards of gypsum plaster; building paper; building cardboard; structural frameworks (non-metallic -) for buildings; brackets, not of metal, for building; door frames, not of metal; door cases (non-metallic -); expansion joints of non-metallic materials for use in construction; profiles for building construction (non-metallic -); building components (non metallic); non-metal cladding for construction and building; reinforcement rods, not of metal; reinforcement beams, not of metal; reinforcing mesh made of textile fibres for construction purposes; stringers (parts of staircases), not of metal; scaffold for building, not of metal; manufactured building elements (non-metallic -); coatings (building materials); building panels, not of metal; building plates (non-metallic -); building materials, not of metal; rigid pipes, not of metal, for building; pitch, tar, bitumen and asphalt; non-metallic transportable structures.