What I say on bio bag large
Using a system of plastic and aluminum coated paperboard combined with an aseptic filling system, these cartons had the ability to be perfectly airtight. These initial cartons were tetrahedra, leading to the company's name: TetraPak, derived from "four" in the Greek languageIn nineteen sixty three (1963) the company introduced another one called TetraBrik, a rectangular cuboid carton. Tetrawedge which was wedge shaped packaging and tetraprisma which was a round octagonal packaging along with tetrafino which was a pouch shaped packaging were other cartons that were launched. TetraPak also produced other non aseptic packaging systems . including tetrarex (gable top), tetratop (paper and plastic molded in one) and the now discontinued tetraking, these are some other tetra bio bags.