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; 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; valves being machine parts for gaseous, liquid and pumpable fluids, namely, 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 use in the clamping and connecting of machine parts, clamping ring connections; valves being machine parts, namely, doubleseat 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; machine parts, namely, pressure valves, pressure-reducing valves, power-operated valves, hydraulic valve actuators, pneumatic valve actuators