<?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="https://vocabularios.eca.usp.br/vcaa/">materiais e ligas metálicas</topic></authority><related type="narrower"><topic>aço</topic></related><related type="narrower"><topic>alumínio</topic></related><related type="narrower"><topic>bronze</topic></related><related type="narrower"><topic>cobre</topic></related><related type="narrower"><topic>ferro</topic></related><related type="narrower"><topic>liga de aço</topic></related><related type="narrower"><topic>metal</topic></related><related type="narrower"><topic>ouro</topic></related><related type="broader"><topic>Materiais</topic></related></mads>