[Class : 7] Valves; Fuel Valves; Engine Valves; Valves For Machines; Valves For Engines; Valves [Parts Of Machines]; Valves As Machine Components; Control Valves [Parts Of Machines]; Proportional Flow Valves Being Parts Of Machines; Control Valves For Regulating The Flow Of Gases And Liquids [Parts Of Machines]; Ball Bearings, Ball Rings For Bearings.