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threaded joint fittings made of metal for tubes; namely, threaded joint members, nuts, washers, tube socket couplings, tube clamps and tubes for use in tractors, automobiles, airplanes, helicopters and boats

[machine-operated tube bending machines; hydraulically operated preassembly jigs for threaded joint fittings for tubes;] universal joint shafts, joints, overload and free wheel clutches, transmissions and parts thereof for use in motor-driven agricultural implements and tractors; couplings for connecting tractors to agricultural implements and for connecting agricultural implements to each other, and parts thereof; namely, coupling frames, low steering tubes, high steering tubes, coupling hooks, side braces, lateral stabilizers, spacers, elevating struts for low steering tubes, catch profiles

manual tube bending tools; manually operated preassembly jigs for threaded joint fittings for tubes

[torque measuring hubs, sensors, load factor indicators and overload warning apparatus]

protective shields of plastic material or steel for universal joint shafts, transmissions and clutches for use in tractors and land vehicles; couplings for universal joint shafts; valves; namely, check valves, ball valves and parts thereof

[ plastic hardware; namely, threaded pipe connections, plug and socket type couplings and pipe clamps ]