Hello; A bulldozer or dozer (also called a crawler) is a large, motorized machine that travels on continuous tracks or large tires and is equipped with a metal blade to the front for pushing material: soil, sand, snow, rubble, or rock during construction or conversion work. When needed, a hook-like device (termed a ripper) can be mounted on the rear to loosen dense materials. Bulldozers can be found on a wide range of sites, mines and quarries, military bases, heavy industry factories, engineering projects, and farms. The D11 weighs 124 Tons, not 104 tons. You also conveniently left out the Komatsu D575 Super Dozer. That should have been the largest production dozer in the world! As a mechanic specialized on Komatsu since 2012, I am rather disappointed that you didn't showcase the D575 super dozer, the big brother to the 475. It’s absolutely amazing that all the equipment you see China made are mimics of the equipment that are being made in the USA and other small countries. To get away from Ness just know that if you wanted quality equipment you buy caterpillar, Komatsu, case and then look at what the Chinese have made and they can be absolute doppelgängers of each other. Didn’t even try to hide the look the way the size nothing just put their name on it! Completely amazing how Property theft can go strong this way and nothing happens!