Crushing machines, especially for stone, wood and hard materials, impact crushers; impact grinding mills, impact mills, twin rotor hammer mills for treatment of stone, wood and hard material; machines, namely, recycling crusher installations, jaw crushers; shredder machines not for paper, sieving machines; doffing cylinder cutters being parts of machines, filling installations for crushing equipment, namely, feed devices for filling crushing equipment being parts of machines for use in mineral processing, bar feeders as loaders, vibratory feeders and rotary cutting machines; vibratory channels as parts of machines, apron conveyors, scraper chain conveyors, conveyor belt reels, conveying devices in the form of conveying screws being parts of machines and conveyers, belt conveyors, rolling tracks for piece goods as parts of machines, dosing machines, dosing belts as parts of machines and sold as a unit; dosing troughs and slides being parts of machines for use in mineral processing, drainage machines, drainage devices in the form of gate valves and drainage screws being parts of machines, machines for wet processing of stone, wood and hard material, namely, bucket wheels, machines for wet processing of stone, wood and hard material, namely, paddle mill type revolving scrubbers, fine sand re-extracting installations, namely, silt quarrying machine, air separators in the form of air sifters for removing dust and low density matter, machines for wet processing of stone, wood and hard material, namely, washing drums, sample extraction installations, namely, sampling machines, cement mixing installations, namely, concrete mixers, replacement parts especially for crushing equipment; conveying installations being machines for removing dust; electric motors for machines, diesel engines for machines, transmission motors for machines, transmissions for machines