Storage silo comprises body, lower distribution part and upper roof part with central part with opening and convex peripheral part integral with staircase section extending upwards from periphery to central part

摘要

The storage silo comprises body part (5), a lower distribution part (7) and an upper roof part (9). The roof part has a central part (13) provided with an opening and a convex peripheral part (17). The peripheral part is integral with a staircase shaped section (35) extending upwards from the periphery (19) to the central part.