Sora提示词：Ultra-realistic 4K video showing a blue flanged cast iron ga

Ultra-realistic 4K video showing a blue flanged cast iron gate valve installed on an industrial pipeline. The camera slowly moves along a large steel pipeline inside an industrial facility. Steam and water vapor drift lightly in the background. Close-up view of the valve’s body, flange bolts, rising stem, and handwheel. The valve is shown opening and closing smoothly. Natural industrial lighting, metallic reflections, slight vibration of the pipe during operation, engineering documentary style, emphasizing durability and reliable flow isolation