Recently, in the context of tariff settings between the United States and Taiwan, we've heard of a less common term: "Section 232 measures." Let's briefly understand its main purpose.

Sand casting is a mature and widely used metal forming process. It involves melting the desired metal (such as iron, aluminum, and copper) into a liquid state using molds, sand, templates, and models, then pouring the molten metal into the mold and allowing it to cool to form the desired shape. Sand casting accounts for over 80% of all castings...

Passivation treatment is a common process in the industry. Its main purpose is to add a protective layer to the metal surface, improving the corrosion resistance of the workpiece and extending the product's lifespan. It is a very important surface treatment process.