BIALFA COBALT M42 13 X 0.6 X 6/10 4750
BIALFA COBALT M42 20 X 0.9 X 6/10 4750
BIALFA COBALT M42 34 X 1.1 X 6/10 4750
BIALFA COBALT M42 41 X 1.3 X 6/10 4750