Bucyrus Erie walking dragline model

http://www.youtube.com/watch?v=E2OPU-7oARsYouTube - Bucyrus Erie walking dragline model[/video]

http://www.youtube.com/watch?v=-pWKfECR4XkYouTube - Bucyrus Erie 9W walking dragline model[/video]

http://www.youtube.com/watch?v=oNn8aP9fba4YouTube - Bucyrus Erie Walking Dragline Model[/video]

Saludos