6
Joists of aluminium, joists of aluminium for supporting flooring; Metal floors; Clips of metal for flooring
17
Polyethylene films for cladding; Acoustic membranes for soundproofing; Soundproofling materials; Structures for absorbing sound; Soundproofing materials for buildings; Goods for soundproofing floors; Sound-absorbing mats; Air intake silencers made from sound-absorbing materials; Sound-absorbing plates; Ventilation grilles made from sound-absorbing materials; Plates made from sound-absorbing materials; Soundproofing materials for buildings; Grooved underpinning membranes, not of metal, for separating brick walls from slabs; Soundproofing panels for construction; Soundproofing panels made from plasterboard and other non-metallic materials; Sound insulating materials; Insulating strips for construction; Sound-absorbing materials for construction; Soundproofing/sound-absorbing panels made from mineral wool and other non-metallic materials; Plastics in extruded form for use in manufacture; Packing, stopping and insulating materials; Acoustical panels for buildings; Insulation sheets; Sound insulating boards; Nozzles and profiles of rubber and plastic materials
19
Polyethylene for construction; Boards of gypsum plaster; Boards made of wood particles; Goods for construction made from polyester; Goods for construction made from mineral wool; Plaster boards for construction; Sound-absorbing mats for construction; Wooden flooring; Raised floors of wood; Exterior floors in general; Raised exterior floors of wood; Supports for raised floors; Supports for raised exterior floors; Structures, not of metal; Construction materials of rubber and plastic; Anti-impact underfloor mats made from latex rubber; Anti-impact mats based on polyester fibre for surfaces under construction; Sound-absorbing panels made from polyester fibre for correcting acoustic defects in enclosed areas; Building materials (non-metallic); Interior floors; Floors in general, not of metal; Floor underlay; Goods, not of metal, for laying floors; Flooring; Plasterboard sheets; Acoustical ceiling tiles and panels; roofs (non-metallic- ); Gratings; Gutters; Sumps; Manhole covers; Substructures for slatted floors; Goods for laying waterproofing membranes; Goods for laying synthetic membranes; Goods for laying bituminous membranes; Goods, not of metal, for water runoff; Vents; Boards made of wood particles