Ключевые слова: construction, craftsman, electricity, engineering, equipment, fix, gas, gloves, helmet, industrial, industry, iron, job, join, labor, laborer, maintenance, male, man, manufacturing, mask, metal, occupation, oil, person, pipe, pipeline, pipes, plumber, plumbing, production, protection, protective, repair, safety, sewage, skill, skilled, steel, technology, tool, water, weld, welder, welding, work, worker,