Classification Information
Steel alloys in the form of tubes; metal alloys in powder form; steel alloys for use in furnaces; steel alloys for use in electrical heating elements
Metal GoodsElectrical resistance material, and products and articles thereof, namely, electric resistances in the form of wire, strip, ribbon, bar, tube, and powder
Electrical and Scientific ApparatusElectrical heating elements; heat exchangers in the form of tubes for furnaces not being parts of machines
Environmental Control Apparatus