What is the green compression strength of core sand mixture for general purpose?
A. 1/5 kg/cm2
B. 1/6 kg/cm2
C. 1/7 kg/cm2
D. 1/8 kg/cm2
Answer:C
What is the green compression strength of core sand mixture for general purpose?
A. 1/5 kg/cm2 B. 1/6 kg/cm2 C. 1/7 kg/cm2 D. 1/8 kg/cm2