90086256
Jul 31, 2020
Apparatus for the treatment of air or other gases, but excluding natural gas, by means of pressure and deep temperatures; apparatus for the separation or enrichment of air or other gases, but excluding natural gas, with the aid of adsorption agents and semipermeable membranes; apparatus for the production of hydrogen through steam reforming
Environmental Control ApparatusInstallation, assembly, repair, maintenance, service and security check of apparatus for the production of nitrogen, oxygen and hydrogen, but excluding natural gas, for others
Building Construction and RepairDesign for others of apparatus for the production of nitrogen, oxygen and hydrogen, but excluding natural gas, for use in industry
Computer and Scientific