Multilayer program: the addition of a plastic movie was step one for making brick containers impermeable to liquids and heat-sealable. Within the sixties, an aluminum foil started to be added into the cardboard container to be certain greater protection and prolong the shelf life of the packaged products. Gabletop Pak https://www.tumblr.com/gabletoppak/772202430375116800/gabletop-pak-the-ideal-packaging-solution-for?source=share