Grind metal on a grinding machine in a factory: Listen & Download Grind metal on a grinding machine in a .mp3 Error! Change your browser, please! ⇓ Download Lathe turning on, work, stop ⚠ Hydraulic pump ⚠ Car factory ⚠ Mechanical lift ⚠ Notches, print imprinted in cardboard ⚠ Glass bottles on a conveyor line, room noise ⚠ Robotic assembly line ⚠ Breakdown press ⚠ Electric welding ⚠ Electric generator (hum) ⚠ Power station turbine ⚠ Hydraulic activator ⚠ ★★★★★