ceiling panels, not of metal; coverings for ceilings, not of metal; non-metal building panels incorporating acoustic insulation; building materials, not of metal; non-metallic building materials; non-metallic building materials with soundproofing qualities; gypsum ceiling tiles; non-metal suspended ceiling systems comprising panels

Building materials made principally of common metal; Building materials of metal; Metal building materials; Prefabricated building materials (metal); Metal hardware for buildings

Acoustic building materials (other than for insulation); Building materials, not of metal; Builders' hardware of non-metallic materials; Non-metallic building materials; Non-metallic building materials having acoustic properties; Non-metallic building materials having insulating properties; Non-metallic building materials having sound deadening properties; Non-metallic building materials having thermal insulation properties

extruded aluminium sections; extruded aluminium profiles; aluminium; partitions of metal; partitions of metal for building; frames of metal for building; metal construction frames; metal hardware; building materials made of metal

gypsum ceiling tiles; plastic ceiling tiles; coverings for ceilings, not of metal; ceiling panels, not of metal; building materials, not of metal, being ceiling tiles; non-metallic building materials, being ceiling tiles

coverings for ceilings, not of metal; gypsum ceiling tiles; ceiling panels, not of metal; non-metal suspended ceiling systems comprising panels

ceiling panels, not of metal; coverings for ceilings, not of metal; gypsum ceiling tiles; non-metal suspended ceiling systems comprising panels