A. 90% tungsten carbide and 10% cobalt
B. 70% aluminium oxide & 30% silica
C. 30% nickel, 15% chromium & 55% tungsten
D. 65% tungsten & 35% zirconium
Correct Answer: 90% tungsten carbide and 10% cobalt ✔
Last Updated: February 08, 2019
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