Construction Machinery: Grader Komatsu

Model	Type of pump
GD825A-2	Double-acting hydraulic cylinders of piston-type
GD675-3	Hydraulic system of Closed Center Load Sensing System (CLSS)
GD655-3	Hydraulic system with locking in the middle position, load sensing with variable piston pump working volume
GD555-3	Hydraulic system of Closed Center Load Sensing System (CLSS)