... slag, cement clinker, fireproof materials, and so on.2. Double Roll Crusher Working PrincipleThe motor drives the fixed ... Roll Crusher Features1. Compact structure, low noise and efficient; 2. Easy to install and only need simple foundation; 3 ... Zhengzhou City, Henan Province, China. // double roll crusher // High quality double roll crusher (2-140TPH capacity) with ISO9001:2008 certificate-Hongji