The utility model relates to a guide rail field specifically is a guide rail wolfram steel, including the guide rail body, the surface of guide rail body is equipped with the apron, and the apron is fixed with the guide rail body through locking screw, form the track between guide rail body and the apron, orbital internally mounted has tungsten steel alloy to insert. Through the track, because the track forms through locking screw fixed connection by guide rail body and apron, and orbital opening part is the loudspeaker form, so not only makes things convenient for the pan feeding, still makes the butt joint of inserting become convenient, again because the surface of apron and guide rail body is smooth surface, and functioning speed that can improve equipment, glossy surface can the noise reduction in addition intensity reduces the physical and mental health's that the noise led to the fact near personnel harm.