Shatter index of metallurgical coke on 2 inches and 0.5 inch screen
should be respectively around __________ percent.
(A) 80 and 97
(B) 95 and 100
(C) 40 and 70
(D) 25 and 97
should be respectively around __________ percent.
(A) 80 and 97
(B) 95 and 100
(C) 40 and 70
(D) 25 and 97