[elecena] STD21Y5-TEC-0 - zmiany ceny STD21Y-5 STD21Y5-TEC-0 - 1.42 PLN https://elecena.pl/product/29374461/std21y5-tec-0 2025-09-20 STD21Y5-TEC-0 - 1.41 PLN https://elecena.pl/product/29374461/std21y5-tec-0 2026-01-18