A. Cross linked polystyrene
B. Phenol formaldehyde resins
C. Polyesters
D. Polyamides
Correct Answer: Cross linked polystyrene ✔
Last Updated: March 08, 2019
A. Cross linked polystyrene
B. Phenol formaldehyde resins
C. Polyesters
D. Polyamides
Correct Answer: Cross linked polystyrene ✔
Last Updated: March 08, 2019