<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31373780</termId><termName>structural aluminum</termName><termType>PT</termType><termNote><![CDATA[ Aluminum in an alloy form for the additional strength necessary for construction purposes. Aluminum is lightweight and corrosion-resistant so it does not require painting, making it an increasingly popular building material. Because aluminum can be extruded, structural shapes can be made economically to meet specific design requirements. ]]></termNote><termCreatedDate>2026-03-30 20:40:48</termCreatedDate><relation><relationType>UF</relationType><termId>31373781</termId><termName>aluminium, structural</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373782</termId><termName>aluminiums, structural</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373783</termId><termName>structural aluminiums</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373784</termId><termName>aluminum, structural</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373785</termId><termName>aluminums, structural</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373786</termId><termName>structural aluminums</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344453</termId><termName>metal by product</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31343513</termId><termName>aluminum</termName><termType>PT</termType></relation></term>  </Zthes>