Nickel, [ nickel alloys, cobalt, ] and cobalt [ alloys; nickel clad powders; cobalt clad powders; Chemical products used in industry, science, and chemical fertilizers; ] metals in [ foil and ] powder form, unwrought common metals [ and precious metals ]

NICKEL, NICKEL ALLOYS, COBALT, COBALT ALLOYS, NICKEL CLAD POWDERS AND COBALT CLAD POWDERS

UREA

UNWROUGHT AND PARTLY WROUGHT METALS AND METAL ALLOYS

CHEMICAL FERTILIZERS

cylindrical castings of abrasion resistant iron-based alloy weldable or welded onto a metallic substrate to provide a pattern of spaced apart protrusions