Replacement blades for windscreen wipers

Marking of replacement blades:
- RR22, RR24, RR32, RR40 – replacement blades without steel springs
- RR22RS, RR24RS – replacement blades as a unit with steel springs
New designation for improved replacement blades for windscreen wipers:
- RRC – replacement blades without steel springs
- RRC..RS – replacement blades as a unit with steel springs