?Rail clamps, also known as fishplates, are important railway equipment primarily used to connect two tracks and ensure the safe operation of trains. It usually consists of two steel rails and a connecting plate, and has the characteristics of high strength and high stiffness. It can withstand various loads from the track, such as the impact and friction of train wheels. The main purpose of steel rail clamps is to ensure the stability and safety of trains, and can also be used for track repair and maintenance, improving the service life of the track.