Rubber tracks being parts of construction machines; rubber tracks being parts of crawlers on loading-unloading machines and apparatus; undercarriages for earth moving machines; undercarriage components for use in agriculture, construction, mine workings and earth moving machines; blades for earth moving machines; blades [parts of machines]; buckets for earth moving machines; graders [earth moving machines]; driving chains, other than for land vehicles; transmission chains, other than for land vehicles; pressure controllers [valves] being parts of machines; roller bearings; roller bearings for machines; steamrollers; roller conveyors; driving motors, other than for land vehicles; loading and unloading machines; shovel loaders [machines]; loading ramps; mobile cranes; agricultural implements, other than hand-operated; excavators [earth working machines]; loaders [machines]; bulldozers; earth moving machines; mining machines; crawler cranes; crawler-tracked loaders; ground engaging machines; sprocket for machines; wear plates for machines; bearings [parts of machines]; chain guards [parts of machines]; elevator chains [parts of machines]; linking mechanisms [parts of machines]; non-electric coupling rings [parts of machines]; non-electric coupling sleeves [parts of machines]; power operated valves being parts of machines; rolls being parts of machines; valves [parts of machines]; engines not for land vehicles; compressed air engines; compressed air pumps; pneumatic controls for machines, motors and engines; bearing brackets for machines; heavy duty grinding machines; power transmission apparatus, other than for land vehicles; agricultural machines