[Class : 6] Structures Of Metal; Expandable Metal Grids; Gratings Of Metal; Latticework Of Metal.[Class : 7] Control Mechanisms For Machines, Engines Or Motors; Power Trains For Sea Craft; Propellers For Machines; Propulsion Mechanisms, Other Than For Land Vehicles; Thrusters For Machinery; Thrusters [Marine Propulsion Apparatus].[Class : 12] Barges; Ferry Boats; Screw Propellers; Screws [Propellers] For Ships; Steering Gears For Ships; Thrusters For Vehicles; Metal Grid Structures To Be Installed In Tunnel Thruster Openings For Enhancing Vessel's Hydrodynamic Performance; Metal Grid Structures To Be Installed In Vessel's Tunnel Thruster Openings For Energy Saving.[Class : 37] Shipbuilding; Underwater Construction; Machinery Installation, Maintenance And Repair; Underwater Repair.[Class : 42] Consultancy In The Field Of Energy Saving; Energy Auditing; Engineering; Technological Consultancy; Technological Research; Research In The Field Of Building Construction; Technical Consultancy Services Relating To Marine Engineering; Surveying [Engineering]; Engineering Services For The Design Of Structures; Engineering Services For The Analysis Of Structures; Computer Aided Scientific Analysis Services; Conducting Engineering Surveys; Analysis Of The Structural Behaviour Of Water Vessels; Technical Computational Fluid Dynamics (Cfd) Analysis Services.