... ) Pressure cooker Aluminum alloy A3003,softening oxidation 2) Suitable for induction or gas 3) Diameter (cm):18-32;or 3-15L Aluminum alloy pressure cooker Specification ... :1) Material: aluminum alloy 30032) Size: 18cm, 20cm, 22cm, 24cm, ... without spot burning4) Easy for cleaning,time and energy saving Aluminum pressure cooker