1.Dual-pump combined technology, 2.hydraulic flow expanding steering 3.single-handle guide control 4.flexible and convenient 1,HAIG can supply All kinds of construction machinery.2, We also supply 4x2, 6x4,6x2, 8x4 series tractor trucks, dump trucks, cargo trucks, water tank trucks, oil tank trucks, concrete mixers, semi-trailer, truck crane,all terrain crane.bulldozer,excavator ,wheel loader,etc ...