In general, a tractor-trailer refers to a vehicle that has no driving capacity by itself and is mainly used to provide cargo loading space and bearing capacity, and relies on the traction power provided by the tractor in front to achieve driving. With the continuous development of the automotive industry, more and more traction models are emerging. In terms of types, tractor trailers can be mainly divided into full trailers, semi-trailers, central axle trailers and light tractor trailers. Today, we mainly learn about the full trailers and semi-trailers.
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