Ключевые слова: angle, arc, assembly, background, build, circle, construction, craftsman, cutting, detail, energy, equipment, erection, fabricate, factory, fire, fitter, fix, flash, grinder, industrial, industry, iron, job, join, labor, laborer, light, making, man, manufacture, manufacturing, mask, metal, pipe, protection, repair, safety, skill, skilled, spark, steel, structure, technical, technology, trained, treatment, turning, welded, work, worker, workplace, workshop,