http://news.autocarpoint.co.nz/portals/0/ACP_MediaGallery/44848/40760_p.jpg

The all-terrain walking excavator ET110 built by XCMG, China's 3rd largest
construction machinery manufacturer, was customized for complex terrains such as hills and waterways. XCMG had a demo for this funny spider at bauma China 2010.
The concept of mobile excavator was proposed by a swiss engineer named Ernst Menzi about half a century ago.









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