2018-07-18
I believe many friends first saw the middle axle trailer, the first reaction was: "this is full trailer originally!"In fact, the whole trailer is mainly composed of cars, bridges, bogies and traction devices. The front axle, bogie and traction device are combined as a whole, which can be turned with the driving direction of the tractor; in addition, the traction device can move up and down, and that is precisely because of this, the tractor only plays the role of traction. Bear the weight of tra......