Internally threaded copper tube is a copper tube with excellent performance, and its inner surface is designed with a spiral thread structure. Compared with smooth copper tubes, internally threaded copper tubes have the following advantages. Increase heat exchange area: The internally threaded copper tube improves the heat conduction efficiency by increasing the surface area of the inner wall.Optimize fluid flow state: The internal thread structure optimizes the flow state of the fluid, making the heat transfer more uniform and reducing the temperature gradient. Reduce pressure drop: The internally threaded copper tube reduces the pressure drop of the fluid in the pipeline and improves the efficiency of the system. Reduce the number of connections: The number of connections between copper tubes is reduced, the pipeline layout is simplified, and the cost is reduced. Corrosion resistance, high toughness: The internally threaded copper tube has the characteristics of corrosion resistance, high toughness, and is easy to cut and process.