The World Wide Leader in Manufacture of Cold Finished Steel Bars. Corey Steel Company is a world wide leader in the manufacture of cold finished steel bars. We also offer a wide range of aluminum and copper bar, rod, and wire products. Our state-of-the-art manufacturing facilities enable us to meet the increasing complex needs of today's users of cold finished steel bar Our goal is not to be the biggest provider of long products. Our goal is to be the best provider of long products in every aspect of our business.