Bulldozers are one of the main types of construction machinery, which are used for long-distance pushing, ditching, filling, loosening, cleaning, ground breaking, traction, roadbed construction, material accumulation, surface stripping, leveling and compaction, and cleaning. Snow deicing, garbage cleaning and other operations, one machine is multi-purpose. Widely used in mining, water conservancy and hydropower, construction, transportation, oil field port construction, agriculture and forestry, national defense, building materials, coal, metallurgy, sanitation and other industries.