Ключевые слова: arc, assembly, connect, construction, craftsman, engineering, equipment, fabricate, factory, fire, fix, flash, gas, improvisation, industrial, industry, iron, job, labor, laborer, light, making, man, manual, manufacture, manufacturing, mask, metal, metalwork, pipe, pipeline, production, protection, protective, repair, safety, skill, smoke, spark, steel, technical, tool, tube, weld, welder, welding, work, worker, workplace, workshop,