Construction, concrete processing: Listen & Download Concrete processing, Construction .mp3 Error! Change your browser, please! ⇓ Download Bobcat Loader Starts Up, Waits ⚠ Crane ⚠ Hammering a brick wall ⚠ Leaves, Excavator starts ⚠ Wood blows, Hammer and chisel ⚠ Concrete mixer ⚠ Drill ⚠ Manual grinder ⚠ Air rivet gun ⚠ Sand is poured, screenings ⚠ Electric surface grinding machine ⚠ Saws,, hammers, Home construction ⚠ ★★★★★