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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">INDUSTRIA DEL VIDRIO</topic></authority><related type="narrower"><topic>ESPEJOS</topic></related><related type="narrower"><topic>INDUSTRIA DE BOTELLAS</topic></related><related type="narrower"><topic>INSTRUMENTOS OPTICOS</topic></related><related type="narrower"><topic>VIDRIO SOLPLADO</topic></related><related type="broader"><topic>INDUSTRIA CERAMICA</topic></related><variant type="other"><topic>Fabricación del vidrio</topic></variant><variant type="other"><topic>Vidrio--Industria y comercio</topic></variant></mads>