RNP

Metal fittings for compressed air tubes; cast steel, unforged or semi-forged steel; steel alloys; base metal alloys; aluminum alloys; copper rings in the nature of ring-shaped fittings of metal, metal rings in the nature of ring-shaped fittings of metal; metal washers being metal hardware; copper hoops in the nature of barrel hoops of metal; metal flanges; bronze; cast iron, un-forged or semi-forged; chromium-plated iron unwrought or semi-wrought; base metal ingots of common metal; unforged or semi-forged base metals, namely, common metals, unwrought or semi-wrought; metal molds for metal casting; screws of metal