Construction, concrete processing: Listen & Download Concrete processing, Construction .mp3 Error! Change your browser, please! ⇓ Download Wood file ⚠ Drum rotation, Construction, cement loading ⚠ Driving piles, Construction of buildings ⚠ Hammering a brick wall ⚠ Building tape ⚠ Bulldozer starts, expects to be jammed ⚠ Belt sander ⚠ Hammer and chisel, blows on concrete ⚠ Electric polished marble ⚠ Drill machine ⚠ Screwdriver ⚠ Sandpaper, rough sandpaper ⚠ ★★★★★