The experience gained over the years has allowed a constant improvement in construction techniques and especially in the choice and use of special materials with high mechanical and corrosion resistance. These storage systems can reach capacity of 3,000,000 liters and beyond to meet the needs of large production sites. The technical support and the experience gained over the years are necessary, in order to realize this type of tanks. The organization of the site, the planning of the works in complete safety, the constant control of the quality and the times, are fundamental aspects that allow to manage at best also the more demanding plans.