Galvanizing is a technology that deposits a layer of tin on the surface of a metal substrate (mostly cold-rolled low-carbon steel) through electroplating or hot-dip processes. Its core function is to prevent corrosion and enhance the surface properties.
It can isolate the substrate from contact with air and moisture, preventing rusting. Moreover, the tin layer is non-toxic and easy to weld, making it widely used in food packaging (such as tinplate), electronic components, and other fields.
Chroming is a technology that deposits a layer of chromium on the surface of a metal substrate through an electrolytic process. Its core function is to enhance wear resistance, corrosion resistance and surface hardness. According to its application, it can be divided into two types: decorative chroming (thin coating, bright silver color, used for furniture, automotive parts) and functional chroming (thick coating, focusing on wear resistance, used for mechanical parts, molds).