Generally, aluminum surface treatment means anodizing. Anodizing is a coloring process by using oxide coating and mineral salt to prevent aluminum corrosion.
From the mixture of chemicals and control of electricity, thickness of film and softness/hardness in film strength can be controlled. Additionally, according to customer request, various colors can be applied.

Daewoo Metal shares extrusion and film technologies through strategic cooperation with Oyang Inc. (Haman factory) which retains the newest facilities. By this, through realization of high-quality film treatment products and fast delivery, Daewoo Metal intents to reward customers with better services.