Our silos in corrugated sheel metal are suitable in particular as regards the stocking of granulated products, such as: grains with a specific weigh, which is inferior to 840 Kg/cu.dm. Calculus are made following Jansen' s formula conformably to A.I.S.C. and A.S.B.C. American standards, in which they meet file DIN 1055 rules. The considered accidentd loadings are: the pressure of the wind generated to 170 KmIh, the loading of the snow of 90 Kg/sq.m. and the null seismic force.Made in Italy