Railway rescue spares are special spares for locomotive rescue and are used in pairs. The rated load of a single beam is 70t, the effective length of the beam is 3.5m, and it is composed of suspenders, beams, connectors and other parts. Features: large weight, light weight, easy to use, transport. The connection between the sprig and the locomotive can adopt the connection form of suspension, S hook and plate hook according to the actual situation.