6
Building and construction materials and elements of metal; Ceiling supports of metal; Ceiling installations (Metal -); Ceiling boards (Metal -); Ceiling boards (Metal -); Ceiling units of metal; Linings (metal- ) for ceilings; Linings (Metal -) for ceilings; Suspended ceilings of metal; Frameworks of metal for ceilings; Acoustic panels of metal for ceilings; Overhead suspension tracks of metal; Metal hardware; Sections of metal for use in building; Extruded aluminium sections
17
Insulation and barrier articles and materials; Sound dampening blankets; Sound-damping ceiling coverings; Ceilings made of mineral fibres for insulating buildings; Waterproofing and moisture proofing articles and materials
19
Building and construction materials and elements, not of metal; Textured surfaces for ceilings; Non-metal coverings for ceilings; Ceiling coffers of non-metallic materials; Ceiling tiles (Non-metallic -); Roses [ceiling decorations] of non-metallic materials; Suspended ceiling structures (Non-metallic -); Cladding (Non-metallic -) for ceilings; Non-metal suspended ceiling systems comprising panels; non-metal profiles for building construction