Placing pieces by splitting away from the explosion, which the weight of the floors that receive the 15 kg by weight is distributed load, place pieces by the explosion, lay away from each other as much as they can be apart. .
Placing it by putting it to spread apart from each other. The weight of the floor and then get up to 15 kg by weight of a load. Thus providing the specimens by placing spread apart as they can be far apart.
Placing the workpiece by placing the spread apart. The weight of the floor is that the 15 kg. The weight is distributed load. So to put this work by placing the spread apart as it can separately .