mechanical, chemical, and anodic finishes applied to your specifications as part of your order. 2045 Broehm Rd. | Columbus, Ohio 43207 | P: 614.491.5700 | 800.542.2105 | F: 614.491.8478 mail@centralaluminum.com 2011 Central Aluminum ...Central Aluminum Extrusions Web Site For many applications, aluminum needs no protective coating because the thin, transparent oxide which covers its surface adequately protects... it. However, when additional protection or decorative finishes are desired, aluminum accepts a range of finishes whose versatility is unmatched by any other metal. Central Aluminum...