Description
A trailer has a long cargo bay and is able to carry large-size cargo and/or more cargo than can be carried on a truck.
Cargo bay unit is called "trailer", and the front unit with driver's seat is called "tractor" or "trailer head."
A single tractor is able to fit various customer needs, purposes or usages by selecting its trailer from various types of trailers.
The trailer in the above picture can carry cargos up to 26 tons, which is more than twice the capacity of large trucks.