Laser welding: Listen & Download Laser welding .mp3 Error! Change your browser, please! ⇓ Download Box making machine ⚠ Brewing unit, fluid drilling ⚠ Milling machine ⚠ Electric welding ⚠ Spectrograph ⚠ Electric generator (hum) ⚠ Newspaper press ⚠ Dry cleaning ⚠ General noise, Factory work ⚠ Grind metal on a grinding machine in a ⚠ Hydraulic pump ⚠ Car factory ⚠ ★★★★★