Sheet metal processing commonly uses materials such as cold-rolled steel (SPCC), hot-rolled steel (SHCC), galvanized steel (SECC, SGCC), copper (CU), brass, bronze, beryllium copper, aluminum plates (6061, 5052, 1010, 1060, 6063, hard aluminum, etc.), and stainless steel (mirror finish, brushed finish, frosted finish). The choice of material varies depending on the product's function, and generally, considerations should be made based on the product's purpose and cost.

1. Cold-rolled steel SPCC, primarily used for electroplating and baking paint parts, with low cost, easy to shape, material thickness ≤ 3.2mm.

2. Hot rolled steel SHCC, material thickness T≥3.0mm, also used for electroplating and baked paint parts. Cost-effective but difficult to shape, primarily used for flat panels.

3. Galvanized Sheets: SECC, SGCC. SECC electrolytic plates are divided into N material and P material, with N material mainly not requiring surface treatment and being more expensive, while P material is used for painting parts.

4. Copper; primarily used for conductive components, with surface treatments such as nickel plating, chrome plating, or no treatment, which are cost-intensive.

5. Aluminum Sheets; commonly used with surface chromate (J11-A), anodized (conductive anodized, chemical anodized), high cost, with silver plating, nickel plating.

6. Aluminum Profiles; materials with complex cross-sectional structures, widely used in various junction boxes. Surface treatment similar to aluminum sheets.

7. Stainless Steel; primarily used without any surface treatment, high cost.