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Manganese nodule is available to use after the 4 phases of exploration, excavation, transport and refinement.
The manganese nodule excavation uses the collection system to gather the nodule from the seabed surface
and the lifting system to pull the collected nodule to the ship.
The lifting system is the most core technology of manganese nodule collection to carry the manganese nodule to the ship
on the sea by using the aqua-pump after lifting it to the intermediary storage through the soft tube made in new materials.