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It is important to pay attention to the selection of anti-corrosion materials as well as to the proper combination of different components. Protecting materials is a comprehensive task that constitutes an essential part of the production process, requiring coordination from various aspects and seamless integration across all stages. In terms of the selection of equipment and engineering materials, while meeting the main technical, process, and economic requirements for production, materials with good stability under the given corrosion conditions should be used as much as possible. For example: metal linings such as lead and ceramic materials are used in the H2SO4 solution storage tanks. When constructing outdoor structures, metal aluminum and its alloys should be used whenever strength permits, as aluminum does not corrode easily in normal air due to an oxide film layer that protects its surface. Some materials with high weather resistance and excellent corrosion resistance can also be chosen. In terms of design, the structure and combination of equipment and systems should comply with anti-corrosion principles. Try to avoid the lapping and riveting of different metals as much as possible. There should not be too many welds, and the stress on each part must be even. In terms of technical specifications and production processes, if there is a choice, conditions such as low reaction temperature, low pressure, minimal production of corrosive by-products, less stringent corrosion prevention requirements, and easy equipment maintenance should be given priority.