<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31457180</termId><termName>aluminum-silicon alloy</termName><termType>PT</termType><termNote><![CDATA[ Refers to alloys with from 5 to 22% silicon characterized by ease of casting, corrosion resistance, lightness, and ease of welding. ]]></termNote><termCreatedDate>2026-03-30 21:03:03</termCreatedDate><relation><relationType>UF</relationType><termId>31457181</termId><termName>alloy, aluminum-silicon</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31438435</termId><termName>aluminum alloy</termName><termType>PT</termType></relation></term>  </Zthes>