Rotor with blades of contemporary powerful steam turbine in brightly lit workshop of equipment production plant close view Closeup of metal gear box tracks and suspension, bulldozer or other construction equipment Mechanical industry, gear-cutting production, manufacture of gears and shafts on a gear-cutting machine with a milling cutter, oil-cooled Disassembled steam turbine in the process of repairing an electric generator at a power plant steam turbine in repair process, machinery, pipes, tubes, at an power plant Gears. Machine part. close-up metal shafts with cog wheels gears at industrial factory Transmission wheels and axle from car gearbox.