1: The gross mass of a mini truck is usually less than 1.8 tons, suitable for transporting lighter goods.
2: The gross mass of a light truck is between 1.8 and 6 tons, suitable for daily small-scale logistics transportation.
3: The gross mass of a medium-sized truck is between 6 and 14 tons, suitable for transporting medium-weight goods.
4: The gross mass of a heavy truck is between 14 and 100 tons, suitable for long-distance transportation of heavy goods.
5: The gross mass of an extra-heavy truck exceeds 100 tons and is usually used for special large-scale logistics needs.