line crusher second hand, 2018/04/17 · When demand grew beyond the capabilities of one crusher, it was generally a simple matter to add a second machine to take care of the recrushing or secondary crushing work. A popular combination, for example, consisted of a No. 6 primary and a No. 4 secondary, or possibly a 20- x 10-in., or 24- x 12-in. primary jaw, followed by one of the small gyratories .Mica crushing Process, Mica Grinding Process, process crusher, mining equipment exports Mica Grinding Process 49 Views. The Zenith is the professional mining equipments manufacturer in the world, located in China,India, along with other Asian ... Mica mill for grinding powder|Mica crusher machine for crushing ...