Floating or non-floating drilling rigs, drilling heads for drilling rigs, motors not for land vehicles, power-driven chisels, shredders for industrial use, industrial rock crushing machines, machine wheelworks in the nature of gears, feeders in the nature of conveyors, industrial mixers for concrete, agitators for mixing concrete aggregate, macerator pumps, hydraulic pumps, drilling machines, industrial robots

Installation, maintenance and repair of drilling machinery