Ключевые слова: architect, architecture, background, blue, build, builder, business, cap, color, concrete, construction, contractor, energy, engineer, engineering, equipment, factory, hard, hardhat, hat, head, headgear, health, healthy, helmet, industrial, industry, isolated, job, labor, maintenance, manufacture, manufacturing, object, plastic, protect, protection, protective, safe, safety, security, solid, structure, tool, wear, white, work, worker, workman, yellow,