Aluminum die castings can be oxidized it?

　　As everyone knows, the surface treatment method of aluminum is the most common painting or power coating , oxidation is rarely heard. But the DM32 Aluminum Alloy, compared with that of ordinary cast aluminum, the less liquid, the melting higher temperature, therefore, design the mold gate , draft, die casting process are different from ordinary aluminum die-casting. However characteristics of high temperature resistance, corrosion resistance, high flexibility, can be obtained by anodic oxidation for the light surface.