Tanker trucks are specialized vehicles designed to transport liquids and gases in bulk. Their design includes a large - capacity tank, which can be made from materials like steel, stainless steel, aluminum, or composite materials, depending on the nature of the cargo—whether it is fuel, chemicals, food products, or other fluids. The tanks are integrated with pumping systems, valves, and hoses for loading, transporting, and dispensing the cargo. Safety is a key consideration, with features such as double - walled tanks, emergency shut - off valves, leak - detection sensors, and fire - suppression equipment incorporated to prevent accidents and ensure the safe transit of hazardous or non - hazardous materials across different distances and terrains.