Diamètre Ø : 12
4231049000, 0074200118, 81511016175
BS7304, 9253840160, 9253840010, 0074203624, 4454107730, 6609441
9253241010, 0084208518, 0084209218, 0074206018, 0094209618, 7302881
BZ6515, 4253252440, 81504106199, 81504106106, 81504106108, 81504109199, 81504106199