VersiĆ³n para imprimir
http://www.youtube.com/watch?v=iaQDHyHp3Vo http://www.youtube.com/watch?v=Ioutq6IoMEU http://www.youtube.com/watch?v=fq-hufDiZ1w Saludos
http://www.pwce.com/objects/Cat320-1.jpg http://www.joes-towing.com/photo_gal...0in%20pond.jpg http://upload.wikimedia.org/wikipedi....excavator.jpg http://www.kentaraexcavating.com/P10...2072%209x8.jpg
http://www.youtube.com/watch?v=WEaCmnUzGIY http://www.youtube.com/watch?v=JiDpCrEo-hQ&feature=related