Chemicals for use in industry and science; industrial chemicals for surface treatment bath of metals

Anti-corrosive coatings for metals; anti-corrosive coatings for the treatment of metallic surfaces

Machines for chemical surface treatment of metallic parts of air, land and space vehicles; machines for repairing and producing parts for use in jet engines, pulse-jet engines, ramjet engines, and rocket propulsion craft; propulsion systems for aeronautical and space vehicles, as well as their components and spare parts included in this class, namely rocket engines, engines not for land vehicles, aircraft engines, electric pumps, turbines, jet engines, thruster units in the nature of rocket engines not for land vehicles and excluding thrust reversers for aircraft engines, aircraft engines, thrust reversers for rockets but excluding thrust reversers for aircraft engines, engine air intake manifolds, blower casing being aircraft and rocket engine parts, exhaust cones being aircraft and rocket engine parts; compressors as parts of motors and engines; heat exchangers being parts of engines not for land vehicles; transmission and propulsion couplings and components excluding for land vehicles; motors for fixed or mobile installations, other than for land vehicles, specifically gas turbine engines, thermal, electrothermal, jet, nuclear, combined propulsion, rocket propulsion engines, cryogenic rocket engines, rocket engines for satellite launchers and for ballistic and tactical missiles; all these goods used and/or intended for the aeronautical and space field

Chemical or mechanical treatment of materials, namely, chemical treatment of metal and aluminum alloy by means of coating with anticorrosive coatings; physicochemical treatment of metal and aluminum alloy for anti-oxidation or anti-corrosion protection of materials