Recently, the first 20 CDA5B1 locomotives exported to Thailand by CRRC successfully completed the passenger/freight transportation traction test, fully verifying the locomotive performance and achieving a milestone in the preparation for the operation start. The locomotives exported to Thailand are of 16-ton low axle load, which are the AC drive locomotives with the lowest axle load developed by CRRC. Meanwhile, the locomotive features a big power-weight ratio, thus boasting stronger traction po...