Ключевые слова: construction, corroded, crack, danger, dangerous, design, drain, emergency, extinguisher, faucet, fire, fireman, heavy, hose, hydrant, industrial, joint, junction, knot, loss, metal, old, pipe, pipes, protection, public, red, rescue, rust, rusty, safe, safety, seam, security, steel, surface, tap, vintage, wall, water,