[elecena] DIN319-KU-20M6CRT - zmiany ceny Gałka kulista; Ø: 20mm; Gwint wew: M6; duroplast PF DIN319-KU-20M6CRT - 5.49 PLN https://elecena.pl/product/29062780/din319-ku-20m6crt 2025-07-08 DIN319-KU-20M6CRT - 6.06 PLN https://elecena.pl/product/29062780/din319-ku-20m6crt 2026-02-17