AIA is the Largest Full Line Master Distributor of Versa-Bar Continuous Cast Iron in the U.S. AIA also Focuses in Stocking & Distributing Most Common Grades of Steel, Bronze Bar, & TubingParing our line of metal bar products with value added machine processing services is a specialty of AIA. We lead the competition in building cost saving supply programs with more variety of products and more options in value added processing. Let us show you how we can add value to your metals purchases by saving you time in sourcing, reducing your machining costs, and lowering your total logistics costs through consolidation to the mill direct source.