<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31421735</termId><termName>arc welding machines</termName><termType>PT</termType><termNote><![CDATA[ Machines for welding that use a power supply to create an electric arc between an electrode and the base material, in order to melt metals at the welding point. ]]></termNote><termCreatedDate>2026-03-30 20:53:40</termCreatedDate><relation><relationType>UF</relationType><termId>31421736</termId><termName>arc welders</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31421737</termId><termName>arc welding equipment</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31421738</termId><termName>arc welding machine</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31421739</termId><termName>arc-welding equipment</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31421740</termId><termName>arc-welding machines</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31421741</termId><termName>machines, arc welding</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31388507</termId><termName>metal-joining and -holding machinery</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31410483</termId><termName>arc welding</termName><termType>PT</termType></relation></term>  </Zthes>