Sand is a rock that is widely used in construction to make concrete, paving slabs, curbs, when laying roads, and so on. One listing of the use of this material will take a lot of time. Therefore, you should be imbued with the importance of the task that the game Sand Truck will put before you. And it consists in filling every approaching truck with sand to the brim. To do this, you must open the valves, if there are several, in the correct order. Be careful, you have several types of sand of different colors in your warehouse. It must be poured into a car, the body of which matches the color of the cargo. Do not confuse Sand Truck in the game.