1) 2% ceriated tungsten contains a nominal 2WC-% of cerium oxide (CeO2). Ceriated is different from thoriated as it is not a radioactive material.2) Color mark: WC (grey)3) Other impurity: ≤0.20% 4) Diameter: 1.0 - 12.0mm5) Length: 50.00, 75.00, 150.00, 175.00mm6) Quality of surface: Ground finish, polish finish