... variational load.Dual pump converging technology,energy efficient,increase the speed up to 25km/h.The high coefficient of full-scoop ... efficiency and saving oil.Fluid braking,safety and reassuring.Stepless speed change,whole hydraulic pressure sensor turning system,steady and reassuring. Patent ... time(s)≤4.5Time of the three motions(s)≤9Running speed(km/h)0-25Braking distance(m)≤5Min.turning radius(mm ...