(57) Abstract Being the compound oceanic structure, including the oceanic backing material (34), it becomes, it includes the non-woven textile web (16) where the active grain (18) which offers the defense contamination and corrosion for at least on the one hand to that oceanic backing material is enclosed at least in portion of the surface of that oceanic backing material, and formation of the water permeability compound product (14) which becomes is installed, the compound oceanic structure. The below water surface, for example the hull and the buoy, the dock and the water absorption tube, and so on, it can conservation by installing the compound sheet product of this invention, vis-a-vis marine products ones and corrosion.
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