Bague de réduction

1-1 / 4 x 3/4 po 1 1-1/2 x 1/2 in 1 2 x 1-1 / 2 po 1 2 x 1-1/4 in 1 3-1/2 x 2-1/2 in 1 3/4 x 1/2 po 1 4 x 2 po 1 4 x 3-1/2 in 1 NC12/NW10 à NC08/NW7.5 1 1-1/4 x 1 in 2 4 x 2-1/2 in 2 1 - 2 po 1 1-1/2 x 1-1/4 po 1 1-1/4 - 3 po 1 1/2 - 1 in 1 1/2 - 2 in 1 1/2 x 3/8 in 1 2 x 1 po 1 2 x 1/2 in 1 2 x 3/4 in 1 3 x 2 po 1 3-1/2 x 3 po 1 3/4 - 1-1/4 in 1 3/4 - 1/2 in 1 4 x 3 po 1 NC25/NW22 à NC20/NW17 1