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Electro-coated waterproof abrasive paper is made of synthetic resin, aluminium oxide or silicon carbide coated on paper backing. It is suitable for grinding and polishing automobile, furniture, leather,cases of electrical household appliances mechanical accessory. It has features of grinding in the water, bright workpieces surface and no dust pollution. Features: Featuring uniform grain size and keen, great sharping ability and everlasting abrasive resistance. Operation method: Putting the product in the water or oil for several minutes first, then grinding with water or oil if necessary.