<?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_en">wall systems</topic></authority><related type="broader"><topic>curtain walls</topic></related><variant type="other"><topic>systems, wall</topic></variant><variant type="other"><topic>wall system</topic></variant> <note xml:lang="en"><![CDATA[ Curtain walls assembled from highly similar components, each combining two or more of the traditionally separate elements of windows, external finish wall, internal finish wall, and insulation. Curtain walls assembled from highly similar components, each combining two or more of the traditionally separate elements of windows, external finish wall, internal finish wall, and insulation. ]]></note></mads>