7 Hydropneumatic storage units being machine parts; hydraulic, hydropneumatic and reflective sound, vibration and pressure dampers; filters and membrane filters being machine parts for filters and membrane filters, being machine parts for production and mining machining, pulp and paper industry, lubrication systems, test rigs and energy industry and for fuel, oil and water for land, air and water vehicles; filter apparatus, filter equipment and filter installations, filter elements and membrane of elastomeric polymers for industrial textile applications; filters being parts of production machines, mining machines, pulp and paper machines and test machines, vehicles and motors for filtering liquids and/or gases of differing viscosity and composition; shut-off equipment, shut-off apparatus, stop valves and valves being parts of machines and vehicles, in particular for hydraulic and pneumatic fuels and media, in particular flow control valves, directional control valves, pressure valves with indicators and monitors, vent valves; control apparatus being parts of machines and vehicles, in particular for hydraulic and pneumatic installations, in particular transition coils and control blocks; hydraulic and pneumatic control units consisting of at least one of the following; directional control valves, pressure valves and flow control valves; hydraulic or pneumatic operating cylinders being parts of machines; hydraulic or pneumatic drive units for land, air and water vehicles and being parts of machines used for materials processing for general machine construction; hydraulic or pneumatic drive units for land, air and water vehicles and being parts of construction machines, machine tolls, machines for manufacturing plastics, drives for tools, presses, transport machinery, namely loading cranes and fork lift trucks, sea and air travel machines, namely boats and air planes, chemical plants, reactor machines, mining, iron and steel works, and rolling mills, consisting of at least one hydraulic pump, at least one drive motor and at least one container of metal or plastic for liquids; hydraulic motors, lubricating apparatus and equipment, lubricating installations, and lubricating supply apparatus, in particular distributors for fuel and/or oil for stationary and mobile application; mechanically operated clamping apparatus, clamping machines and metal clamps used for holding piece parts on machine tool tables; adjustable and non-adjustable hand operated or motor driven hydraulic pressure and feed pumps; mechanical instruments, devices and equipment parts for manufacturing and engineering, namely, metal extrusion presses; hydraulic drive units for elevator and lift operating apparatus, in particular consisting of a hydraulic pump, a drive motor and a container of metal or plastic for liquids; hydraulic aggregates as modular construction, in particular consisting of one hydraulic tank, one hydropneumatic accumulator, at least one filter, one hydraulic pump, one driving motor as well as one control block for recording of directional control valves, pressure valves and flow control valves