• composto da anelli dei seguenti formati (Ø interno x Ø esterno x spessore): 5,0 x 10 x 1,0 mm - 6,0 x 10 x 1,0 mm - 7,0 x 10 x 1,0 mm - 8,0 x 12 x 1,0 mm - 10,5 x 17 x 1,5 mm - 11,0 x 17 x 1.5 mm - 12,5 x 20 x 1,5 mm - 14,0 x 18 x 1,0 mm - 14,0 x 20 x 1,5 mm - 15,0 x 20 x 2,0 mm - 16,0 x 22 x 2,0 mm - 16,5 x 24 x 2,0 mm - 17,5 x 24 x 2,0 mm
