<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31374201</termId><termName>gypsum blocks</termName><termType>PT</termType><termNote><![CDATA[ Lightweight building material composed of solid gypsum, used for building lightweight, fire-resistant, non-load bearing interior walls. ]]></termNote><termCreatedDate>2026-03-30 20:40:54</termCreatedDate><relation><relationType>UF</relationType><termId>31374202</termId><termName>blocks, gypsum</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31374203</termId><termName>gypsum block</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31343902</termId><termName>masonry units</termName><termType>PT</termType></relation></term>  </Zthes>