1, Rongshida casserole consists of six parts: outer cover, inner cover, inner pot, alloy super ring, outer pot and chassis. Royalstar kitchen and bathroom appliances adopt double-layer pot structure. When cooking, the flame jumps up along the gap between the two pots, and the heat energy is fully utilized. When water boils, the alloy super ring burns red, and the temperature can reach 600 degrees Celsius. After the fire source is cut off, the heat emitted by the alloy super ring will continue to heat the pot body, and at the same time, the outer pot, the outer cover and the base will completely seal the inner pot and the alloy super ring, resulting in greater firepower. Boiling, boiling, stewing, burning and steaming are all carried out under closed normal temperature and pressure, instead of using high pressure, which can prevent the nutritional components of food from being destroyed.

2. Kang Shu casserole consists of five parts: outer cover, inner cover, inner pot, outer pot and chassis. Without the alloy super ring, the lid and the pot body can't be fastened when in use, which will cause the soup to overflow and make it inconvenient to use.