Highlights of HD138 double-drum roller: 1. High-efficiency, low-noise diesel engine; 2. Pressure watering system with 2 water pumps, the driver can observe the watering nozzles from the seat; 3. Ergonomic operator seat with 2 multi-function control handles; 4. The driver's seat includes a steering wheel and a rotatable control panel; 5. Optimal view of the drum surface, the outer edge of the frame and the entire working environment; 6. Hydrostatic all-wheel drive ensures high gradeability.