1996 Caterpillar 320B excavator.Grimaldi RoRo shipping of Caterpillar 320B excavator from Tilbury Docks to Lagos - Nigeria.Grimaldi RoRo shipping of Caterpillar 320B excavator from Tilbury Docks to Lagos - Nigeria.Grimaldi RoRo shipping of Caterpillar 320B excavator from Tilbury Docks to Lagos - Nigeria.