<?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://AATesaurus.cultura.gencat.cat/aat/getty_es">llaves mecánicas: herramientas de metalistería</topic></authority><related type="narrower"><topic>llaves Allen</topic></related><related type="narrower"><topic>llaves de cadena</topic></related><related type="narrower"><topic>llaves de impacto</topic></related><related type="narrower"><topic>llaves inglesas</topic></related><related type="narrower"><topic>llaves españolas</topic></related><related type="narrower"><topic>llaves de casquillo</topic></related><related type="narrower"><topic>llaves de cola</topic></related><related type="narrower"><topic>manija para machos</topic></related><related type="narrower"><topic>llaves de tensión</topic></related><related type="narrower"><topic>llave para tubos</topic></related><related type="broader"><topic>herramientas para asir y unir metal</topic></related><related type="broader"><topic>llaves para tuercas</topic></related></mads>