Ключевые слова: abstract, arc, assembly, background, build, connect, construction, craftsman, entrepreneur, erecting, fabricate, factory, fire, fix, flash, gloves, improvisation, industrial, industry, job, join, labor, laborer, light, making, man, manufacture, mask, metal, naval, prefabricate, protection, repair, safety, skill, skilled, smoke, spark, steel, structure, technical, technology, trained, welded, welder, welding, work, worker, workplace,