BIALFA COBALT M42 20 X 0.9 X 4/6 5500
BIALFA COBALT M42 20 X 0.9 X 4/6 5537
BIALFA COBALT M42 20 X 0.9 X 4/6 5550
BIALFA COBALT M42 20 X 0.9 X 4/6 5570
BIALFA COBALT M42 20 X 0.9 X 4/6 5640