Is a multilayer cast coex plant with encapsulation that guarantees top quality in the extrusion of film with PA and EVOH. In addition, the film encapsulation and the electronic controls ensure the maximum cost-effectiveness of the process by reducing the scraps even to value close to 3% of the gross product. These results are achieved thanks to the electronic management of the die, of the side-slip and of the trimmed edges with the DITTERING® system and with the integrated management of the trimmed edges recovery with the REFESAVE® system.