Fuel tank truck trailers, divided into tank trucks and tank trailers, refer to a trailer designed to carry liquid or gas on the road. They can transport the same liquid and fuel. Fuel tank trucks are mainly used for short distances Transportation, and each time the liquid is relatively small, the maximum is not more than 30,000 liters. Fuel tank trailers are mainly used for long-distance transportation. Generally, there will be more liquids loaded, generally between 30-60KL, the transportation unit Use gallons or liters to calculate.