7 Machines and machine parts for the cement, lime, gypsum, ceramic, refractory, metallurgical and chemical industries, for the mining industry and for the power and energy sector, namely, excavators, bucket excavators, large bucket excavators, mechanical spreaders, chain conveyors, conveyors being machines, hydraulic conveyors, machines for conveying solids, pneumatic conveyors, roller conveyors, screw conveyors, mechanical and electronical hoists, hoists, portable hoist system, belt conveyors, milling cutters, milling machines, rolling mills, ball mills, crushers and crusher systems comprised of crushing machines for industrial purposes for the cement, lime, gypsum, refractory, metallurgical, chemical or mining industries; machines for fragmenting solid materials, grinding machines for the use for the cement, lime, gypsum, ceramic, refractory, metallurgical and mining industry and systems comprised primarily of them, vacuum cleaners, pulverization machines, compacting and vibrating machines, drilling machines, separating machines, separators to separate solids from liquids, classifying machines to classify solids, transfer and transport machines for the cement, lime, gypsum, ceramic, refractory, metallurgical and the mining industry