Chemical Engineering Materials and Construction
Q 18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________?
  • A A. Tungsten, vanadium and chromium
  • B B. Tungsten, chromium and vanadium
  • C C. Vanadium, chromium and tungsten
  • D D. Chromium, tungsten and vanadium
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