Which of the following size reduction equipments employs mainly attrition for ultrafine grinding ?

Which of the following size reduction equipments employs mainly attrit

1.	Which of the following size reduction equipments employs mainly attrition for ultrafine grinding ?
A.	Jet mills
B.	Fluid energy mill
C.	Micronizer
D.	all (a), (b) and (c)
Answer» E.

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Which of the following size reduction equipments employs mainly attrition for ultrafine grinding ?

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