Spiral Chute: Introduction: 1). Suits the fine size ores with particle size of 0.3-0.02mm, 2). Apply to Iron, Ilmenite, Chromite, Brasses, etc. 3). Steadily working condition, easy controlling, big changes in scope... Features: 1). ISO9001, 2008 Quality Certificate 2). Malaysia, Indonia, Philipine, etc.