A. Soft iron
B. Stainless steel
C. Hardened steel
D. None of the above
Correct Answer: Soft iron ✔
Last Updated: December 17, 2018
A. Soft iron
B. Stainless steel
C. Hardened steel
D. None of the above
Correct Answer: Soft iron ✔
Last Updated: December 17, 2018