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Stainless steel is primarily used in elevators for various components such as cabin decoration, ceilings, cabin and hall doors, door frames, floor indicators, control panels, and handrails. In escalators, it is used for skirt panels, inner and outer cover plates, steps, entrance/exit cover plates, and decorative cladding.

Stainless steel sheets are widely used in our daily lives, with applications ranging from decorative construction and outdoor landscape engineering to pulp and papermaking equipment, heat exchangers, electromechanical equipment, dyeing and testing equipment, thin-film processing equipment, pipelines, and exterior building materials for coastal urban architecture.

With the transformation and upgrading of China's industrial structure, the application fields for high-end stainless steel continue to expand. According to the released *Steel Industry Adjustment and Upgrade Plan (2016-2020)*, the state will focus on supporting the R&D and industrialization of high-end steel grades required for major technical equipment in sectors such as high-tech ships, marine engineering equipment, nuclear power, advanced rail transit, electric power, aerospace, and machinery, thereby continuously increasing effective supply.

In the eyes of many consumers, Stainless Steel 304 and 201 appear almost indistinguishable, making it difficult to tell them apart with the naked eye. Here are some methods to differentiate between 304 and 201 stainless steel materials.

Stainless steel is an alloy, meaning it is composed of different elements. As the name suggests, it is a material that does not corrode. Stainless steel is a metal that contains chromium along with chemical impurities such as nitrogen and nickel, which provide good plasticity and toughness.

Stainless steel has high chromium (Cr) and nickel (Ni) content. For stainless steels where manganese (Mn) replaces nickel, the manganese content is primarily high.