Small spangle galvanized steel sheet is a type of galvanized steel sheet that has a smaller and tighter spangle pattern on its surface compared to regular spangle galvanized steel sheet. The spangle pattern refers to the visible crystal structure of the zinc coating that is formed during the galvanization process.
In the small spangle galvanization process, the steel sheet is passed through a molten zinc bath, and the zinc coating is allowed to solidify on the surface of the sheet. The solidification process results in the formation of small, closely spaced zinc crystals on the surface of the steel, which gives it a smooth and uniform appearance.