AT AIR TORQUE

Pneumatic, hydraulic and operational rotating valve actuators; pneumatic valve, hydraulic valve and operational linear actuators; [ manual emissions reduction units for industrial engines, namely, catalytic converters; ] machines parts, namely, valves; clack valves being parts of machines; hydraulic and pneumatic valve actuators; [ shaft couplings and gear boxes, other than for land vehicles; ] machine parts, namely, bearing brackets for actuators and valve positioners for actuators [; torque converters, not for land vehicles; pneumatic motors, other than for land vehicles; torque motors, other than for land vehicles ]