Multilayer Program: the addition of the plastic film was step one for making brick containers impermeable to liquids and warmth-sealable. Within the 1960s, an aluminum foil began to be extra to your cardboard container to be certain improved defense and increase the shelf lifetime of the packaged merchandise. Now we https://share.evernote.com/note/092a2d9b-9bbe-5b73-1d68-c788b997f84b