Containers, particularly containers for foods and containers for beverages, including containers made of tinplate and provided with an inner enclosure or plastic material, containers made of tinplate and provided with an expansibel air-bag of plastic material, containers made of cardboard, paper-board or the like and provided with an inner enclosure of plastic material, containers made of plastic material (whether thermoplastic or thermo-setting) of of other solid material and provided with an inner enclosure of plastic material, heat-insulated containers, heat-insulated containers for beverges, heat-insulated containers for foods, containers for milk, containers for wines, containers for spirits, containers for liqueurs, containers for beer, containers for aerated waters, containers for syrups, containers for fruit juices, and all containers of metal or of cardboard paperboard or the like (and having an inner lining or enclosure of liquid-proof material) or of plastic material made as a substitute for glass containers,