. The Semi Trailer vehicle consisting of Semi Trailer and semi-trailer tractor is especially suitable for long-distance and high-grade road transport, and has become the most important transportation vehicle in road transport. Especially when it comes to carry large, long and heavy goods for other types of vehicle, Semi trailer has a unique advantage. According to the skeleton structure, the number of axles, the form of the bearing platform etc., semi trailers for sale can be divided into different types such as contanier semi trailer, semi dump trailer, etc. We Ultraton semi truck trailer manufacturers has a wealth of design and production experience to provide you with the most suitable transportation solution.