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