SG15-B6 grader was used for subgrade leveling in Southeast Asia. It presented obvious advantages in working stability and traction compared with similar models. It was mainly used for large-area ground leveling and ditching, slope excavation, bulldozing, soil loosening, land reclaiming, snow removal of highways, railways, airports and farmlands. It was an indispensable mechanical equipment for national defense projects, urban and rural road construction, water conservancy construction and farmland improvement.