Electric welding: Listen & Download Electric welding .mp3 Error! Change your browser, please! ⇓ Download Air compressor, air blow ⚠ Stitching machine ⚠ Lithographic press ⚠ Breakdown press ⚠ Grind metal on a grinding machine in a ⚠ Working machine engine ⚠ Oil pump ⚠ Electric generator (hum) ⚠ Rattling, The atmosphere of the factory ⚠ Conveyor belt, Conveyor ⚠ Compressor industry ⚠ Box making machine ⚠ ★★★★★