... , quartz, limestone, muddy shale, chalkstone, gypsum, edible salt and chemical material. This machine is characterized by low maintenance cost, large crushing ratio ... studs surfaceHigh efficiencyOnsite after sale service Working Principles:The roller crushing machine has two rollers rotating in the opposite position. Brittle ... department. +86-28-88208058 Chengdu Dahongli 75* 27 roller crushing machine