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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">MATERIALES DE CONSTRUCCION</topic></authority><related type="narrower"><topic>ACERO ESTRUCTURAL</topic></related><related type="narrower"><topic>AGREGADOS (MATERIALES DE CONSTRUCCION)</topic></related><related type="narrower"><topic>AISLADORES</topic></related><related type="narrower"><topic>ARBOLES MADERABLES</topic></related><related type="narrower"><topic>ASBESTO</topic></related><related type="narrower"><topic>AZUFRE EN LA CONSTRUCCION</topic></related><related type="narrower"><topic>CEMENTO</topic></related><related type="narrower"><topic>CERAMICA INDUSTRIAL</topic></related><related type="narrower"><topic>CONSTRUCCIONES A PUEBRA DE INCENDIOS</topic></related><related type="narrower"><topic>ESTIRADO DE METALES</topic></related><related type="narrower"><topic>FOSFOYESIFERO</topic></related><related type="narrower"><topic>HIERRO ESTRUCTURAL</topic></related><related type="narrower"><topic>HORMIGÓN</topic></related><related type="narrower"><topic>HORMIGON ARMADO</topic></related><related type="narrower"><topic>INGENIERIA ESTRUCTURAL</topic></related><related type="narrower"><topic>LADRILLOS</topic></related><related type="narrower"><topic>MADERA</topic></related><related type="narrower"><topic>MATERIALES BITUMINOSOS</topic></related><related type="narrower"><topic>PIEDRA</topic></related><related type="narrower"><topic>PIEDRAS DE CONSTRUCCION</topic></related><related type="narrower"><topic>PRODUCTOS DE DESECHOS COMO MATERIALES DE CONSTRUCCION</topic></related><related type="narrower"><topic>RESISTENCIA DE MATERIALES</topic></related><related type="narrower"><topic>TERRACOTA</topic></related><related type="other"><topic>BAMBU</topic></related><related type="broader"><topic>ARQUITECTURA</topic></related><related type="broader"><topic>MATERIALES</topic></related><related type="broader"><topic>INGENIERIA</topic></related><related type="broader"><topic>RESISTENCIA DE MATERIALES</topic></related><variant type="other"><topic>Construcción--Materiales</topic></variant><variant type="other"><topic>Edificios--Materiales</topic></variant><variant type="other"><topic>Materiales estructurales</topic></variant></mads>