... -15L Aluminum alloy pressure cooker Specification:1) Material: aluminum alloy 30032) Size: 18cm, 20cm, 22cm, 24cm, 26cm, 28cm,30cm,32cm3) Capacity: 3L, 4L, 5L, 7L, 9L ... without spot burning4) Easy for cleaning,time and energy saving Aluminum pressure cooker