Ключевые слова: arc, arch, bib, blue, construction, day, engineering, equipment, fabrication, factory, fire, flame, flash, gas, gloves, heat, helmet, industrial, industry, insustry, iron, job, labor, light, man, manual, manufacture, manufacturing, mask, metal, metalwork, occupation, production, protection, repairing, safety, skill, smoke, spark, steel, technology, tool, torch, welder, welding, welding mask, work, worker, working, workshop,