A. Cotton, silk and paper
B. Asbestos, glass, porcelain and mica
C. Rubber and polymeric resins
D. All refractory materials
Correct Answer: Rubber and polymeric resins ✔
Last Updated: February 08, 2019
A. Cotton, silk and paper
B. Asbestos, glass, porcelain and mica
C. Rubber and polymeric resins
D. All refractory materials
Correct Answer: Rubber and polymeric resins ✔
Last Updated: February 08, 2019