7 Machine parts, namely, valve housings, valve lanterns in the nature of valve housings for connecting valve bodies to valve drive units for the food, dairy, beverage, pharmaceutical, biotechnological, and cosmetics industries, clamping rings, clamping ring connections, bayonet closures, [ disc valve housings, disc valve flaps, ] flanges, flange connections, pneumatic and [ electric drives, ball bearings for use in machines, namely, pumps, valves, orbital and rotating cleaners, positioning actuators; gear mechanisms, except for land vehicles and parts of such gear mechanisms, namely, gear motors, worms and worm wheels, planetary gear motors, turbine wheels; ] valves being machine parts, namely, automatically controlled, predominantly by spring/air drives, or manually controlled, single-seat, changeover, double-seat, control valves, [ disc valves, single-disc shut-off valves with or without leakage removal, doubledisc shut-off valves with or without leakage removal, ] valves for gaseous, liquid and pumpable fluids, valves for the food and drinks industry as well as the pharmaceutical, chemical and food industries; valves for connecting or shutting off tanks, vessels, machines; fittings, namely, valve pipe connection fittings adapted to machines, namely, flanges, welded ends, screwed unions, clamps for in the clamping and connecting of machine parts, clamping ring connections; valves being machine parts, namely, double-seat valves, single-seat valves, [ disc valves, ] switchover valves, tank bottom valves, tank shut-off valves, sterile valves, pressure-relief valves, [ safety valves, ] control valves, sampling valves; pipeline inspection gauges (pigs) and pig trap stations for pigs as cleaning and product recovery devices in the nature of pig launching, pig catching, and pig cleaning stations