... mining, building materials, chemical industry, metallurgy and so on. It can crush materials in middle hardness such ... slag, cement clinker, fireproof materials, and so on.2. Double Roll Crusher Working PrincipleThe motor drives the fixed roller ... Road, Zhengzhou City, Henan Province, China. // double roll crusher // High quality double roll crusher (2-140TPH capacity) with ISO9001:2008 certificate- ...