Before revision: Dredge drag head is used by a trailing hopper suction dredger to collect sand from the sea floor.Dredge drag head The dredge drag head is a steel structure that is connected to the dredger by a suction pipe.
After revision: A dredge drag head is used by a trailing hopper suction dredger to collect sand from the sea floor.Dredge drag head The dredge drag head is a steel structure that is connected to the dredger by a suction pipe.