A. Polythene
B. Phenol formaldehyde
C. Poly vinyl chloride
D. None of these
Correct Answer: Phenol formaldehyde ✔
Last Updated: February 12, 2019
A. Polythene
B. Phenol formaldehyde
C. Poly vinyl chloride
D. None of these
Correct Answer: Phenol formaldehyde ✔
Last Updated: February 12, 2019