<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31320006</termId><termName>sandwich panels</termName><termType>PT</termType><termNote><![CDATA[ Building panels consisting of two high-density outer sheets, usually plywood, hardwood, or metal, bonded to a lightweight core material, often plastic foam, rubber, or honeycombed paper. ]]></termNote><termCreatedDate>2026-03-30 20:26:15</termCreatedDate><relation><relationType>UF</relationType><termId>31320007</termId><termName>panels, sandwich</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31320008</termId><termName>sandwich panel</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31305867</termId><termName>building materials</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343905</termId><termName>structural insulated panels</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343910</termId><termName>aluminum composite panels</termName><termType>PT</termType></relation></term>  </Zthes>