Ключевые слова: 3d, alarm, art, background, blue, button, city, danger, department, design, drop, emergency, equipment, extinguish, faucet, fire, firefighter, fireman, flame, heat, hose, hydrant, icon, illustration, isolated, isometric, life, metal, object, orange, outdoor, pipe, plug, pressure, prevention, protection, rescue, safe, safety, security, single, square, steel, street, symbol, tool, urban, valve, water,