pivaSiLO, are stocking structures in which bulk powder materials are stored in accordance with their characteristics, the necessary precautions are applied during the stocking period, and the necessary methods (discharge activator, fludization, vibration, hammering, etc.) are applied for easy discharge of difficult blood materials. Depending on the size of the stocking, the nature of the measures taken also changes. The measures taken in the outer field silos and the inner field silos are also different from each other. The measures taken for fragile materials, foodstuffs, oxygen sensitive materials, moisture sensitive materials, pressure sensitive materials and materials with special conditions such as these are different from each other.