由热塑性材料制成的容器，特别是瓶子

Original abstractA thermoplastic container, in particular a bottle, made by blow-molding or stretch blow-molding of a heated preform and including a bell-shaped convex base with its concavity facing outward and provided with reinforcing impressions projecting inward and radiating around a central recess, the impressions having a trapezoid shape with its smaller dimension located toward the center of the base; the impressions include respective arches which form convex trapezoid segments with concavity facing inward and extending from the seat to the central recess by being connected thereto immediately proximate the upper end of the central recess.