A tractor trailer, also known as a semi-truck or 18-wheeler, is a large commercial vehicle used for transporting goods and materials over long distances. These vehicles are typically composed of a tractor unit, which is the front portion that contains the engine and cab, and a trailer, which is the back portion that carries the load. Tractor trailers are a common sight on highways and interstates, as they play a crucial role in the transportation of goods across the country. They are used by a variety of industries, including retail, manufacturing, and agriculture, to move products from one location to another. https://tractorkarvan.com/tractor-implements/tractor-trailer