ARENA

[ Metal hardware, namely, washers; ] Sealing caps of metal; [ Ring-shaped fittings of metal; Screw rings of metal; Washers of metal for forming tight joints; Metal sealing rings; ] Metal gasket rings; Metal gaskets for sealing use; [ Structural joint connectors of metal ]

Back pressure valves as parts of machines; [ Ball valves being parts of machines; Metal valves used in cleaning machines for gas turbine and combustion engines; Proportional flow valves as parts of machines; Pump control valves; Servo-valves; Thermostatic control valves for machines; ] Valves being parts of machines; Metal seals for use in machines

[ Gum, raw or partly processed; ] Non-metal gaskets for use in machines; Non-metal sealing rings for use as connection seals; Non-metal seals for use in machines; Synthetic rubber; Washers of rubber for use in machines; [ Watertight rings for use in machines ]