The application conditions of medium and small horsepower bulldozers in U.S. market are quite different from those in domestic market. Whereas the domestic bulldozer applications are mostly for earthwork transport, the medium and small horsepower bulldozers in U.S. market are mainly used for leveling operations, which extend stringent requirements on machine stability (Such as balance and vibration) and blade control accuracy. 5#DH13K2 is used for joint operations with international high-end brands, including CAT and Komatsu, in multiple state-level road and earthwork construction sites in U.S.