Flues for engine boilers; wind-powered electricity generators; pneumatic drills hand-held; pistons for cylinders; driving motors other than for land vehicles; motors, electric, other than for land vehicles; pneumatic transporters; pneumatic controls for machines, motors and engines; valves as machine components; hydraulic controls for machines, motors and engines; transmission chains other than for land vehicles; gears, other than for land vehicles; gear boxes other than for land vehicles