WWF

metal tubes and pipes; metal tube, pipe, and hose fittings, couplings and connectors, namely, plugs, seals, o-rings, flanges, swivels, swivel adapters, swivel ends, connections, sleeves, caps, reducers, unions, flares, nuts, and ferrules; metal nuts for industrial, commercial, or household use, namely, flare nuts, inverted flare nuts, JIC tube nuts, o-ring face seal nuts, metric hex nuts, and flareless nuts; metal braze-on fittings not being parts of bicycles, namely, metal fittings brazed onto tubing