_:nd880c625d5cd4172bc539e4bade96991xb0
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://hospitecnia.com/arquitectura/correccion-de-errores-de-la-orden-por-la-que-se-modifican-las-referencias-a-normas-une-que-figuran-en-el-anexo-por-el-que-se-declara-obligatoria-la-homologacion-de-los-cementos-para-la-fabri/>