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METALS AND ALLOYS, INCLUDING NICKEL AND NICKEL ALLOYS,BASE ALLOYS OF NICKEL AND COPPER, NICKEL AND CHROMIUM, NICKEL, CHROMIUM AND IRON, COPPER AND NICKEL, NICKEL AND ALUMINUM, ETC., AND METAL PRODUCTAS SUCH AS FILLER METALS, METAL RODS AND METAL ELECTRODES, INCLUDING COATED METAL ELECTRODES, FOR WELDING METLDING METALS AND ALLOYS