11
Combustion equipment for smelting furnaces for the
manufacture of glass and non-ferrous metals; burners for
smelting furnaces for the manufacture of glass and
non-ferrous metals; heat exchangers for smelting furnaces
for the manufacture of glass and non-ferrous metals;
installations for producing, distributing and purifying
gases and gas mixtures for use in industry
39
Supplying (delivering) and distributing (delivering) gases
and gas mixtures for use in industry; rental of gas and gas
mixture distribution installations for use in industry
40
Services for the treatment of materials through combustion
processes for smelting furnaces for the manufacture of glass
and non-ferrous metals; rental of combustion equipment for
smelting furnaces for the manufacture of glass and
non-ferrous metals; rental of heat exchangers for smelting
furnaces for the manufacture of glass and non-ferrous
metals; rental of installations for producing, purifying and
recycling gases and gas mixtures for use in industry;
producing gases and gas mixtures for use in industry
42
Scientific and technical research, engineering and
consultancy (scientific advice) services for the
implementation of gases and gas mixtures for use in
industry; scientific and technical research, engineering and
consultancy (scientific advice) services for the
implementation of gases and gas mixtures in furnaces for the
manufacture of glass and non-ferrous metals; designing
industrial processes and engineering services, on behalf of
third parties, for the implementation of gases and gas
mixtures for use in industry; designing industrial processes
and engineering services, on behalf of third parties, for
the implementation of gases and gas mixtures in furnaces for
the manufacture of glass and non-ferrous metals