7 [ Fluid-engineering, gas-engineering and lubrication-engineering installations and components of all kinds, in this class, in particular for use in the automobile industry, including mobile hydraulics, the semiconductor industry, the food industry, aeronautics, medicine, pharmacy, oil and gas transport technology, environmental engineering, laboratory and testing technology, household and sanitary systems, machine tools, transfer presses and plastic injection molding machines, namely, hydraulic and pneumatic valve actuators and power pumps for power applications, lubricating pumps for lubrication applications, and cooling pumps for cooling machines; hydropneumatic storage units for the storage of hydraulic fluids and compressed gas being parts of pneumatically and hydraulically operated machines for use in the automobile industry, including mobile hydraulics, the semiconductor industry, the food industry, aeronautics, medicine, pharmacy, oil and gas transport technology, environmental engineering, laboratory and testing technology, household and sanitary systems, machine tools, transfer presses and plastic injection molding machines; Hydraulic accumulators being parts of machines; Hydraulic accumulators being parts of machines used in power applications, lubricators and coolers, namely, piston accumulators, bladder accumulators, diaphragm accumulators, bellows accumulators, and spring accumulators; accumulator installations consisting of hydraulic accumulators being parts of machines for use in the automobile industry, including mobile hydraulics, the semiconductor industry, the food industry, aeronautics, medicine, pharmacy, oil and gas transport technology, environmental engineering, laboratory and testing technology, household and sanitary systems, machine tools, transfer presses and plastic injection molding machines, and offshore and deep sea machines; hydraulic, hydropneumatic and reflective sound, vibration and pressure dampers, namely, shock absorbers for machines and silencers for machines; shut-off equipment, shut-off apparatus, shut-off valves and switch-over devices, namely, ] valves being parts of machines for pneumatic and hydraulic fuels and media, namely, flow control valves, [ priority valves, shuttle valves, seat valves and slide valves, ] throttle valves, [ directional control valves, ] check valves [, pressure valves, pressure control valves and pressure limiting valves, and vent valves; hydraulic and pneumatic control apparatus being parts of machines, in particular for hydraulic and pneumatic installations, namely, hydraulic and pneumatic valve control blocks for controlling hydraulic and pneumatic machines; power and mechanically operated clamping apparatus, clamping machines and clamping tools, namely, clamps with movable jaws for retaining parts and workpieces on industrial machines; motor-driven hydraulic pressure and feed pumps, adjustable and non-adjustable, as parts of machines; hydraulic drive units for elevator controllers, transport controllers and lift controllers, in particular including a hydraulic pump, a drive motor and a liquid container of metal or plastic; machines for industrial washing and cleaning, namely, pressure washers for cleaning industrial equipment; electric motors for industrial machines ]