A. sulphur, lead, phosphorous
B. silicon, aluminium, titanium
C. vanadium, aluminium
D. chromium, nickel
E. lubricants
Correct Answer: sulphur, lead, phosphorous ✔
Last Updated: May 18, 2023
A. sulphur, lead, phosphorous
B. silicon, aluminium, titanium
C. vanadium, aluminium
D. chromium, nickel
E. lubricants
Correct Answer: sulphur, lead, phosphorous ✔
Last Updated: May 18, 2023