[elecena] DIN319-KT-20M6ERT - zmiany ceny Gałka kulista; Ø: 20mm; Gwint wew: M6; technopolimer PA DIN319-KT-20M6ERT - 8.60 PLN https://elecena.pl/product/29002940/din319-kt-20m6ert 2025-06-29 DIN319-KT-20M6ERT - 8.43 PLN https://elecena.pl/product/29002940/din319-kt-20m6ert 2026-02-17