Machine coupling and transmission components (except those for land vehicles); transmission belts (other than for land vehicles); drive belts (other than for land vehicles); pulleys (parts of machines and/or motors and engines); belts and rollers for machines; motors and engines (other than for land vehicles); belts and reels for conveyor systems; transmission systems (machines) and driving machines; conveyor belts and tracks, roller and rubber tracks for use in belt conveyor apparatus, also used as parts for snow groomers and snowplows; machines, devices and apparatus for fastening and connecting; membrane filters and valve diaphragms for use as parts of machines, membranes for filter plates and filter presses for use as parts of machines.