The Arched form with the doors allows for much larger openings, that may be beneficial in structures like barns or garages. Multilayer technique: the addition of a plastic film was the first step to make brick containers impermeable to liquids and warmth-sealable. Within the sixties, an aluminum foil started to https://sites.google.com/view/mineralwaterinbox/redefining-hydration-with-sustainable-packaging