Ключевые слова: angle, construction, craftsman, cutter, cutting, electric, electrical, engineering, equipment, erecting, factory, fire, fitter, flash, gloves, grinder, heavy, industrial, industry, iron, job, labor, laborer, light, machine, making, man, manufacture, manufacturing, mechanical, metal, people, person, pipe, power, production, protection, safety, skill, spark, sparks, steel, technical, tool, welder, welding, work, worker, workshop,