Signal for lunch at the factory: Listen & Download Signal for lunch at the factory .mp3 Error! Change your browser, please! ⇓ Download Low frequency running engine ⚠ Mechanical lift ⚠ Dry cleaning ⚠ Vibrosieve at the factory ⚠ Breakdown press ⚠ Welding, hammer knocking, Car factory ⚠ Work in a warehouse, loaders, general noise ⚠ Spinning machine ⚠ Electric industrial motor ⚠ Hydraulic pump ⚠ Air blow, Air compressor ⚠ Small centrifuge ⚠ ★★★★★