What is the amount of clay needed in green sand?
A. 5% – 10%
B. 5% – 15%
C. 15% – 30%
D. 25% – 40%
Answer:C
What is the amount of clay needed in green sand?
A. 5% – 10% B. 5% – 15% C. 15% – 30% D. 25% – 40%