37 Maintenance and repair of motors; installation, maintenance and repair of electrical drives and drive systems for machines; repair services for gear motors, motor drives, drive systems, hydraulic drives, gears for machines, power-operated machines, frequency converters, servo technology, robots, control systems, electrical/industrial trade products and gearboxes, trains, lifting, conveying and packaging machines, semiconductor machinery, cranes, elevators and escalators, air-conditioning fans and pumps, woodworking machines, machine tools, CNC screw machines, industrial robots, passenger elevators, trains, trams, buses, power-operated machinery, conveying and packaging machines, semiconductor machinery, cranes, elevators and escalators, air conditioning, woodworking machines, machine tools, CNC screw machines, industrial robots; installation work for gear motors, motor drives, drive systems, hydraulic drives, gears for machines, power-operated machines, frequency converters, servo technology, robots, control systems, electrical/industrial trade products and gearboxes, trains, lifting, conveying and packaging machines, semiconductor machinery, cranes, elevators and escalators, air-conditioning fans and pumps, woodworking machines, machine tools, CNC screw machines, industrial robots, passenger elevators, trains, trams, buses, power-operated machinery, conveying and packaging machines, semiconductor machinery, cranes, elevators and escalators, air conditioning, woodworking machines, machine tools, CNC screw machines, industrial robots