Diâmetro Ø : 20
4231069000, 0004207524, 81511016115, 6212188, 6212188, 1010154, 1738480, 834483
BS3547, 4231067000, 4235060810, 81511016467, 81511016483, 20708819, 1542893
BX3604, BZ3636, 4231079000, 8283850000, 1081461, 834484, 203272900
BZ6517, 4253250410, 81504109185, 81504106124, 81504106117, 81504106159, 81504106185