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fluid handling equipment made primarily of metal for the storage of industrial chemicals, namely, pipes, and tubing; manually-operated valves made of metal and parts thereof; metal ventilating ducts; metal pipe couplings and swing joints; metal manholes and covers therefor for access to underground tanks

power-operated tank, truck and marine loaders for use with rail tankers, road tankers, ships and airplanes; floating suction pumps for use with fluid storage tanks; valves being parts of fluid handling machines; power-operated marine loading arms featuring manual and hydraulic quick disconnection mechanisms; power-operated counter balanced loading arms featuring thermal jacketing and external heat source to preserve viscosity of fluids being transferred thereby; swivels being parts of power-operated loading arms

automatic valves and parts thereof; fleet refueling system composed of pressure relief valves, level control valves, roll over protection valves, loading couplers and adapters, sold as a unit; and automatic nozzles

vapor recovery equipment made of metal consisting of vapor recovery hoods, piping and manifolds therefor