The Empire State Building contains steel reinforced by concrete, making it extremely fire-proof. Deputy Chief Fire Department of New York (F.D.N.Y.) Vincent Dunn (ret.) wrote:<ref>''Id.''</ref> | The Empire State Building contains steel reinforced by concrete, making it extremely fire-proof. Deputy Chief Fire Department of New York (F.D.N.Y.) Vincent Dunn (ret.) wrote:<ref>''Id.''</ref> |