11 Ventilation apparatus, fans, air-conditioning apparatus and installations; air-conditioning apparatus and installations; air deodorizing and purification apparatus and machines; air filtering installations; of water or of oil; ceiling lights; fans (parts of air-conditioning installations);air ducts, water conduits installations.
17 Rubber, raw or semi-worked rubber, vulcanite, synthetic rubber; semi-finished plastic products; semi-finished synthetic resins;synthetic resins (semi finished products);packing, stopping and insulating materials;soundproofing materials; insulators; bark coverings for sound insulation; flexible pipes, not of metal; rubber shock absorbers and buffers;water-tight rings and weatherstripping;insulators; insulating materials; insulating tapes; insulating paper; insulating tapes; insulating coatings; insulating varnish; insulating oils; metal foil for insulation; insulating paint; insulating fabrics; insulating felt;glass fibres and fibreglass fabrics for insulation;joint seals.
37 Building construction, repair, installation and insulation services;construction, installation, repair, upkeep and maintenance of apparatus for ventilation, air-conditioning and padding of sound insulation and soundproofing structures and installations;scaffolding;sound insulation for the external surfaces of buildings;damp proofing;insulating services;sound insulating services;soundproofing;information relating to insulation, sound insulation and soundproofing;information relating to the construction, repair and installation of insulation;information relating to the installation, repair, upkeep and maintenance of apparatus for the ventilation, air-conditioning and padding of sound insulation and soundproofing projects and installations;installation of coverings for sound installation and soundproofing.
40 Material processing, air purification;air deodorising;production of energy;custom assembling of materials;material treatment information;treatment, casting, plating, tempering of metals.
42 Analysis and research into industrial acoustics, research consultancy;design, development, installation, maintenance and rental of computer software relating to industrial acoustics;consultancy and surveying relating to construction and industrial acoustics;drafting plans for construction, sound insulation and soundproofing; material testing.