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When the forest get fire,as the water is too far away from the fire scene,people often miss the best time of putting out the fire,which make the fire spread quickly. It is a perfect choice to use the sand what we can get everywhere to put out the fire.By the high-pressure spraying of the machine,it will generate strong airflow to lower the air temperature, and the tiny sand spraying out from the machine will cover the combustibles and cut off the air to stop firing.