[elecena] O-7X3-70-NBR - zmiany ceny Uszczelka O-ring NBR wew:7mm D:3mm czarna -30+100°C O-7X3-70-NBR - 0.23 PLN https://elecena.pl/product/27327295/o-7x3-70-nbr 2024-11-24 O-7X3-70-NBR - 0.23 PLN https://elecena.pl/product/27327295/o-7x3-70-nbr 2026-07-18