Multilayer system: the addition of a plastic film was the first step to generate brick containers impermeable to liquids and warmth-sealable. Inside the sixties, an aluminum foil started to be added on the cardboard container to make sure greater security and lengthen the shelf lifetime of the packaged products. Their https://gabletopmilk.blogspot.com/2025/04/the-sustainable-revolution-with-gable.html