Multilayer program: the addition of a plastic movie was step one to generate brick containers impermeable to liquids and heat-sealable. From the nineteen sixties, an aluminum foil started to be added on the cardboard container to ensure far better defense and prolong the shelf lifetime of the packaged products. Final https://mineralwaterbox.blogspot.com/2025/04/how-paper-bottles-and-gable-top-cartons.html