A. Its softening
B. A treatment to retard its deterioration due to oxidation
C. Improving its curing rate
D. Depression of its freezing point
Correct Answer: Its softening ✔
Last Updated: March 07, 2019
A. Its softening
B. A treatment to retard its deterioration due to oxidation
C. Improving its curing rate
D. Depression of its freezing point
Correct Answer: Its softening ✔
Last Updated: March 07, 2019