Link chains for driving purposes (other than for land vehicles); Machines for manufacturing chains; Transmission chains, other than for land vehicles; Sprockets for machines; Bearing rollers; Conveyor belt rollers; Rollers for bearings; Tamping rollers (machines); Tamping rollers (parts of machines); Metal forming machines; Metalworking apparatus; Metalworking machines; Valves of metal (parts of machines); Work processing machines for the turning of metals; Linking devices (parts of machines); Heavy duty grinding machines; Heavy media separators (machines)