Spectrograph:Listen & Download Spectrograph .mp3 Error! Change your browser, please! ⇓ Download Forklift truck moving away ⚠ Factory atmosphere, drone in a mine tunnel ⚠ Spinning machine ⚠ Industrial exhaust fan ⚠ Mechanical lift ⚠ Electric welding ⚠ Work, start, jamming, Generator ⚠ Forklift in motion ⚠ Notches, print imprinted in cardboard ⚠ General noise, Factory work ⚠ Postal sorting line ⚠ Newspaper press ⚠ ★★★★★HTML code:BB code: