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Coated steel refers to steel that has been covered with a protective layer such as zinc, aluminum-zinc alloy, or organic coatings to enhance its resistance to corrosion, wear, and environmental damage. These coatings not only improve the durability and lifespan of material but also add aesthetic value and functionality for use in construction, automotive, appliances, and other industrial applications.

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Aluminum die casting is a metal casting process that involves injecting molten aluminum alloy into a mold, also known as a die, under high pressure. This process allows for the creation of intricate and detailed parts with high precision. Aluminum die casting is widely used across industries due to its ability to produce lightweight yet strong and durable components.

High purity zinc refers to zinc metal that has been refined to a purity level of 99.995% or higher. This high degree of purity is essential for applications requiring precise chemical properties, such as in electronics, semiconductors, pharmaceuticals, and specialty alloys. The absence of impurities in high purity zinc ensures optimal performance in sensitive processes, where even trace contaminants could compromise the desired outcomes.