Concrete Truck Mixer Series,concrete mixer,electric concrete mixer Original coarse pitch agitating vane, non ... -feeding small cone design with lower fuel consumption, bigger work-saving and less discharging ... -class gradation mixing, transport as well as discharging.Concrete Truck Mixer Series SY5250GJB,SY5250GJB1,SY5250GJB2,SY5250GJB3,SY5250GJB3A ...