There are generally three types of stainless steel raw materials for food industry equipment, respectively 430, 304, 1810. Among them, 430 stainless steel can avoid air oxidation
caused by natural factors, but can not resist the air oxidation formed by chemicals in the air, so it will still rust if not used for a long time. 304 stainless steel plate can resist organic chemical properties of air oxidation, in tableware applications are very wide.