3 TON : 2 wheels or 4wheels ,matched with 25－40hp tractor, inflation brake , dump selected . For 2wheels it adopts rear dump, 4wheels trailer can dump left and right with circuit. It is used for half and Short distance transportation and operation in the field .The form of turning: centre less turntable. The form of damping: leaf spring The form of traction: tripod stand traction (cusion spring) Postpositive taillight   Left and right barrier. Auto-circuitry of the whole trailer. The form of tipping: left or right tipping. Provide with fuel tank (double fuel tank).The form of air path connection: connected with spiral tube.