Ключевые слова: assembly, blue, build, connect, construction, craftsman, engineering, fabricate, factory, fire, flash, gas, hot, industrial, industry, iron, job, join, labor, laborer, light, making, manufacture, manufacturing, mask, metal, pipe, power, protection, repair, safety, shop, skill, skilled, smoke, spark, steel, structure, technical, technology, tool, trained, weld, welded, welder, welding, work, worker, workplace,