Signal for lunch at the factory: Listen & Download Signal for lunch at the factory .mp3 Error! Change your browser, please! ⇓ Download Welding, hammer knocking, Car factory ⚠ Heidelberian sorting printer ⚠ Forklift approaching ⚠ Steam pump ⚠ Stamping press ⚠ Air compressor, air blow ⚠ The atmosphere of the factory, rattling ⚠ Book press ⚠ Gas welding ⚠ Industrial exhaust fan ⚠ Power Plant Water Pumps ⚠ Crusher ⚠ ★★★★★