| 摘要 |
<p>A sealed vessel formed by a cover (2), a bottom (8) and a lateral surface. The cover (2) and the bottom (8) are obtained by thermoforming of a solid sheet of plastic material identical to that from which the lateral surface is formed. The lateral surface is obtained by means of dinking, starting from a sheet of plastic material having an alveolar structure, or from a solid sheet. The cover (2) is engaged at the upper end of the vessel, and the bottom (8) is welded or glued to its lower end. Furthermore, the lateral surface is obtained by welding (melting) or by fixing in a known manner (for example by an adhesive) the two opposite ends of the planar development of the lateral surface. <IMAGE></p> |
