BIALFA COBALT M42 13 X 0.6 X 6/10 4500
BIALFA COBALT M42 20 X 0.9 X 6/10 4500
BIALFA COBALT M42 27 X 0.9 X 6/10 4500
BIALFA COBALT M42 34 X 1.1 X 6/10 4500