Ключевые слова: arc, assembly, business, channel, closeup, cnc, composition, connection, cut out, energy, engineering, equipment, fire, flash, glove, glow, heavy, helmet, industrial, industry, labor, leadership, light, machine, man, manufacturing, mask, master, metal, metalwork, people, prefabricated structures, production, protection, safety, skill, skilled, smoke, spark, sparks, steel, technical, tool, weld, welded, welder, welding, welding electric, work, worker,