A heavy duty fire fighting truck refers to a robust and powerful fire truck designed for handling large-scale fires and emergencies. These trucks are equipped with advanced firefighting equipment, high-capacity water tanks, powerful pumps, and specialized tools to deal with severe fire situations. They are often used in industrial, commercial, or large-scale residential areas where larger fire outbreaks may occur, and they are built to withstand challenging conditions, such as extreme heat, long-duration operations, and rough terrains. These trucks are typically larger, have higher water and foam capacities, and are capable of carrying more extensive equipment compared to standard fire trucks.