Multilayer program: the addition of the plastic movie was the first step to create brick containers impermeable to liquids and heat-sealable. Within the nineteen sixties, an aluminum foil started to be included to your cardboard container to be certain much better defense and prolong the shelf life of the packaged https://share.evernote.com/note/362ce13f-b851-6e01-c253-74e443569409