Roller conveyors; pneumatic conveyors; pneumatic transporters; construction machines and apparatus; loading-unloading machines and apparatus; shafts, axles or spindles being machine elements other than for land vehicles; bearings being machine elements other than for land vehicles; shaft couplings or connectors being machine elements other than for land vehicles; power transmissions and gearing, machine elements not for land vehicles; ball transfer units being machine elements other than for land vehicles; ball transfer table units being machine elements other than for land vehicles; pneumatic ball transfer units being machine elements other than for land vehicles; machine elements, not for land vehicles.
Machinery