Basic Introduction Of Semi-trailer

A semi-trailer is a trailer whose axles are placed behind the vehicle's center of gravity (when the vehicle is evenly loaded) and are equipped with hitches that transmit horizontal and vertical forces to the tractor. The semi-trailer is generally a three-axle semi-trailer, and its types are divided into 11-meter warehouse semi-trailer, 13-meter warehouse lantern, low-bed semi-trailer and many other types. It is a heavy-duty transportation vehicle connected with the semi-trailer head through a traction pin.