Industrial use door, automatic easy to manage with great flexibility. Can be used for interiors or exteriors allowing it to quickly create climate controlled spaces by opening and closing washing tunnels, car workshops, door manufacturing companies... The opening mechanism can be stacked concertina or roll-up. It is made from resistant and long lasting material that can withstand great temperature variance. Manufactured using 900 gms/m2 of flame retardant and very gard wearing PVC. Optional transparent PVC windows.