Steel rail is the main component of railway track. Its function is to guide the wheels of the rolling stock forward, withstand the huge pressure of the wheels, and transfer to the sleeper. The rail must provide a continuous, smooth, and least resistant rolling surface for the wheel. In electrified railway or automatic block section, the rail can also be used as a track circuit.

Steel rail is the main component of railway track. Its function is to guide the wheels of the rolling stock forward, withstand the huge pressure of the wheels, and transfer to the sleeper. The rail must provide a continuous, smooth, and least resistant rolling surface for the wheel. In electrified railway or automatic block section, the rail can also be used as a track circuit.

Steel rail is the main component of railway track. Its function is to guide the wheels of the rolling stock forward, withstand the huge pressure of the wheels, and transfer to the sleeper. The rail must provide a continuous, smooth, and least resistant rolling surface for the wheel. In electrified railway or automatic block section, the rail can also be used as a track circuit.