<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Materiales de construcción</topic></authority><related type="narrower"><topic>Arcilla</topic></related><related type="narrower"><topic>Asbesto</topic></related><related type="narrower"><topic>Estuco</topic></related><related type="narrower"><topic>Piedras de construcción</topic></related><related type="narrower"><topic>Rocas ornamentales</topic></related><related type="narrower"><topic>Yeso</topic></related><related type="narrower"><topic>Materiales bituminosos</topic></related><related type="other"><topic>Hormigón</topic></related><related type="other"><topic>Ladrillos</topic></related><related type="other"><topic>Albañilería</topic></related><related type="other"><topic>Revestimientos</topic></related><related type="other"><topic>Vidrios</topic></related><related type="other"><topic>Cal</topic></related><related type="other"><topic>Cemento</topic></related><related type="other"><topic>Madera</topic></related><related type="other"><topic>Hormigón pretensado</topic></related><related type="other"><topic>Resistencia de materiales</topic></related><related type="other"><topic>Materiales refractarios</topic></related><related type="other"><topic>Hormigón armado</topic></related><related type="other"><topic>Arquitectura</topic></related><related type="other"><topic>Aislantes</topic></related><related type="other"><topic>Construcción resistente al fuego</topic></related><related type="other"><topic>Fibras de vidrio</topic></related><related type="other"><topic>Vidrio</topic></related><related type="other"><topic>Cerámica industrial</topic></related><related type="broader"><topic>Materiales</topic></related><related type="broader"><topic>Ingeniería</topic></related><related type="broader"><topic>Construcción</topic></related><variant type="other"><topic>Construcción-Materiales</topic></variant></mads>