Electro Aço Altona S.A., a small foundry and mechanical repair shop, produces and supplies steel casting and special alloys. It serves rails, agricultural machinery, oil and gas, power generation, defense, structural components, construction and mining, dredging, marine, industrial equipment sectors. The company was formerly known as Auerbach & Werner and changed its name to Electro Aço Altona S.A. in 1933. Electro Aço Altona S.A. was founded in 1924 and is based in Blumenau, Brazil.