Multilayer Technique: the addition of a plastic movie was step one to produce brick containers impermeable to liquids and warmth-sealable. From the nineteen sixties, an aluminum foil began to be extra for the cardboard container to ensure improved protection and lengthen the shelf life of the packaged merchandise. The choice https://share.evernote.com/note/50a43c45-be13-328c-5d6a-78a96bc30d4c