Worker Who Joins Very Hot Materials Together

This page is the CodyCross answer for the clue below from Larger than Life, Group 2141, Puzzle 5 (Water Slides).

Question is: Worker Who Joins Very Hot Materials Together

and the answer is: WELDER

Word Meaning:

WELDER — One who welds, that is, unites pieces of steel, aluminum, or other metals by welding.

Definitions from Wiktionary.