... sand rock, gypsum, the dregs of blast furnace, stone, granite, trap rock, coke, coal, manganese ore, iron ... fused aluminum, oxide, fused calcium carbide, lime stone, quartzite, alloys, etc.We had built good ... middle, and down rotor crushing rooms and crushed, pressed, and ground by the hammer and ... board, and finally the materials are gradually crushed into needed sizes and come out.Technical ...