حساب مؤشر العمل الكرة مطحنة - priateu. حساب مؤشر العمل الكرة مطحنة What exactly is 'Work Index' and how can I make , - Metcom Expertise 'Work Index' is to measuring energy in size reduction what the 'meter' is to , a crushing circuit, a rod mill, or a closed ball mill circuit, the Work Index always.