Aerating pumps for aquaria; Air pumps for hydroponics; Central vacuum cleaning installations; Centrifugal pumps; Compressed air pumps; Dust exhausting installations for cleaning purposes; Dust removing installations for cleaning purposes; Electric window cleaning machines; Faucets being parts of machines, engines or motors; Hoses for vacuum cleaners; Mechanical seals; Pumps as parts of machines, motors and engines; Pumps for counter-current swimming; Pumps for machines; Suction nozzles for va...