Asphalt mixers; Asphalt paving machines; Automatic sprayers for electrostatic painting; Concrete construction machines; Concrete finishing machines; Concrete mixers; Concrete paving machines; Concrete placing machines; Concrete vibrators; Driving devices for lifts; Electric floor polishing machines and apparatus; Electric sweepers; Electric vacuum cleaners; Floor buffers; Floor buffing machines; Floor cleaning machines; Floor edgers; Floor polishers; Floor polishing machines; Floor sanders; Floor scrubbing machines; Floor washing machines; Hand-held vacuum cleaners; Hoists; Machine parts, namely, blades; Machines, namely, crushers, impact mills, breakers, pulverizers, mixers and blenders and parts therefor, for industrial and commercial applications; Planing machines; Self-lubricating mechanical friction parts, especially of composite materials, namely, wear rings, washers, bushings, spherical bearings, bearing pads, sliding blocks and machine transmission gears all for load bearing machines, conveyors, handling trucks and machines, lifting machines, agricultural machinery, construction equipment machines and hydraulic turbines; Spraying machines; Vibratory grinding machines; Electric floor polishing machines and apparatus; Electric floor polishing machines and apparatus