6 METALS AND ALLOYS IN POWDER, SHEET, STRIP, TAPE, WIRE, ROD, AND TUBE F ORM NAMELY ELECTRICAL STEELS, SILICON IRON ALLOYS, FERROMAGNETIC ALLOY S, MAGNETOSTRICTIVE ALLOYS, BIMETALLIC MATERIALS, TUNGSTEN NICKEL AND PURE NICKEL MATERIALS, EXPANSION ALLOYS, ELECTRONIC ALLOYS, THERMALRES PONSIVE ALLOYS, CORROSION-RESISTANT ALLOYS, DISPERSION HARDENED ALLOYS , AND REFRACTORY ALLOYS