A. lead base alloy
B. tin base alloy
C. copper base alloy
D. all of the above
E. A. and C. above
Correct Answer: E. A. and C. above ✔
Last Updated: May 18, 2023
A. lead base alloy
B. tin base alloy
C. copper base alloy
D. all of the above
E. A. and C. above
Correct Answer: E. A. and C. above ✔
Last Updated: May 18, 2023