7 Mixing installations, in particular concrete mixing installations; conveyor machines for the construction industry; fixed mountable and convertible concrete pumps; concrete pumps for mounting on chassis, vehicles and crawler tracks; concrete distribution booms; automatic concrete pumps, parts and fittings for the aforesaid goods, in particular crawler tracks; stirring machines; mobile agitators; machines for homogenising biomass, in particular for use in biogas installations, manure spreading machines; earth-moving apparatus, in particular hydraulic excavators, rail-road excavators, wheel loaders, bulldozers, crawler loaders, cable excavators; pile driving and drilling apparatus, rotary drilling apparatus, industrial drilling apparatus; working tools, namely, tools as parts of cranes and tools as parts of machines; material handling apparatus, in particular wood handling apparatus, hydraulic excavators, telescopic loaders, reach stackers; power-operated lifting and moving equipment, namely, pipe layers; crawler conveyors; mobile crushing installations and structural parts and fittings for the aforesaid goods, in particular crawler tracks; cranes, in particular tower cranes, automobile cranes, deck cranes, container cranes, mobile wharf cranes, crawler cranes, stacker cranes being reach stackers; gas and diesel engines for combined heat and power plants; machine tools, in particular gear cutting machines, gear shaping machines, roller milling machines, gear hobbing machines, and tools therefor, in particular gear cutting tools being parts of machines; recycling installations, namely, machines for separating recyclable materials; material handling machines, in particular gantry robots, transport belts; hydraulic and electromechanical winches; belts for conveyors; hydraulic flight control units being machines and parts and accessories for the aforesaid goods, in particular chassis being parts of machines, diesel engines being parts of machines, exhaust after-treatment systems being parts of machines, diesel-hydraulic hybrid drives being parts of machines; electric motors for machines, motor and engine control apparatus for machines, hydraulic linear actuators, gear boxes, other than for land vehicles, namely, pump drives, valves, cylinders and hydraulic components, equipment, including lifting gear; working tools and attachment tools being parts of earth moving machines, namely, buckets, grippers and shovels for earth-moving apparatus, in particular hydraulic excavators, rail-road excavators, wheel loaders, bulldozers, crawler loaders, cable excavators, for pile driving and drilling apparatus, rotary drilling apparatus, industrial drilling apparatus, for working tools, for material handling apparatus of all kinds, in particular wood handling apparatus, hydraulic excavators, telescopic loaders, reach stackers, for pipe layers, and for crawler conveyors; hydraulic quick-coupling systems for attachment tools for earth moving machines; hydraulic quick-coupling systems for attachment tools for cranes; quick-coupling adapters, oscillation tools, hydraulic hammers and pipe tongs, for earth-moving apparatus, in particular hydraulic excavators, rail-road excavators, wheel loaders, bulldozers, crawler loaders, cable excavators, for pile driving and drilling apparatus, rotary drilling apparatus, industrial drilling apparatus, for working tools, for material handling apparatus of all kinds, in particular wood handling apparatus, hydraulic excavators, telescopic loaders, reach stackers, for pipe layers, and for crawler conveyors; cabins for cranes, cabins for earth-moving apparatus, in particular hydraulic excavators, rail-road excavators, wheel loaders, bulldozers, crawler loaders, cable excavators, for pile driving and drilling apparatus, rotary drilling apparatus, industrial drilling apparatus, for working tools, for material handling apparatus of all kinds, in particular wood handling apparatus, hydraulic excavators, telescopic loaders, reach stackers, for pipe layers, and for crawler conveyors; telescopic wheel loaders; support systems being parts of machines, namely, cranes and truck-mounted concrete pumps, in particular for mobile cranes and truck-mounted concrete pumps, for earth-moving apparatus, in particular hydraulic excavators, rail-road excavators, wheel loaders, bulldozers, crawler loaders, cable excavators, for pile driving and drilling apparatus, rotary drilling apparatus, industrial drilling apparatus, for working tools, for material handling apparatus of all kinds, in particular wood handling apparatus, hydraulic excavators, telescopic loaders, reach stackers, for pipe layers, and for crawler conveyors; hydraulic quick coupling systems for machines being installers and quick hitches