[Class : 7] Mechanical Shaft Seals, Centrifugal Pumps, Clack Valves [Parts Of Machines], Clutches Other Than For Land Vehicles, Controls (Hydraulic) For Machines, Motors And Engines, Controls (Pneumatic) For Machines, Motors And Engines, Couplings Other Than For Land Vehicles, Cylinder Heads For Engines, Cylinders (Pistons For), Cylinders For Machines, Cylinders For Motors And Engines, Driving Motors Other Than For Land Vehicles, Earth Moving Machines, Hydraulic Engines And Motors, Jacks [Machines], Machining (Apparatus For), Manifold (Exhaust) For Engines, Motors, Other Than For Land Vehicles, Pistons [Parts Of Machines, Engines Or Motors], Shaft Couplings [Machines], Valves (Clack) [Parts Of Machines], Valves [Parts Of Machines]