Gas welding: Listen & Download Gas welding .mp3 Error! Change your browser, please! ⇓ Download Lithographic press ⚠ Hydraulic machine up ⚠ Book press ⚠ Breakdown press ⚠ General noise, Factory work ⚠ Machine engine gaining momentum ⚠ Letter press ⚠ Turning on, Welding transformer, working, ⚠ Automatic telephone switch ⚠ Conveyor, conveyor belt ⚠ Forklift drives by ⚠ Dry cleaning ⚠ ★★★★★