Introduction Trefilerías Quijano, S.A. is located in Los Corrales de Buelna, Cantabria and, with over 125 years? experience, is one of the leading producers of wire and its by-products in Europe. After over 120 years, Trefilerías Quijano has succeeded in occupying a leading position on the Spanish and international markets. Its range of products covers a wide selection, including: Steel wires Cords Select a product for more details. Over the years, Trefilerías Quijano has continually strived to improve its processes and in 1995, it obtained the certification stating that its Quality Assurance System is compliant with the ISO 9002 standard.