COB-30

    (0.6 mm – 0.7 Gr./Ft.)

COB-40

    (0.8 mm – 1.8 Gr./Ft.)

COB-50

    (1.1 mm – 2.2 Gr./Ft.)

COB-85

   (1.4 mm – 5.4 Gr./Ft.)

COB-100

    (2.8 mm – 5.5 Gr./Ft.)