Workshop where metal is cut and shaped etc., by machine tools WordNet 3.0 & Open English WordNet

A machine shop or engineering workshop is a room, building, or company where machining, a form of subtractive manufacturing, is done. Wikipedia

hall in where goods are industrially made, or processed Wikidata

A facility that has machine tools for working with metals or other relatively hard materials, such as some polymers. Various kinds of machine shops make and repair all types of metal objects, from machine tools, dies, and molds to mass-produced parts such as screws, pistons, or gears. Wiktionary

Facility that has machine tools for working with metals. Wiktionary (translation)