DF-Duro Felguera | 52,719 followers on LinkedIn. Powered by experience | Duro Felguera is a global company based in Asturias. It was founded at the end of the 19th century with the first ironworks and the exploitation of coal, a period in which it was already the most important agent of industrialisation in Spain. Since then, innovation, talent and quality have been the driving forces behind its extraordinary development to become an international benchmark.