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Underwater Walking Robot VVL-SV-X2 is designed and modified on the basis of Tracked Suspension ROV,which equipped not only the 360degree working three axis manipulator arm but also the base plate-130MM wide track that can make the ROV work more stable in the bottom of the water.It is driven by the track and mainly focus on the underwater work in the bottom of the sea or river.It is widely used in aquaculture and suitable for the meticulous work of underwater pickup and objects collection as well.