Multilayer system: the addition of the plastic movie was the first step for making brick containers impermeable to liquids and heat-sealable. While in the 1960s, an aluminum foil began to be extra for the cardboard container to make certain superior protection and prolong the shelf life of the packaged product https://artongabletop.sport.blog/2024/09/12/gabletop-pak-the-ultimate-solution-for-beverage-packaging/