... resistance type furnace with quartz sand and petroleum coke as its main raw materials. Its hardness ... -1mm, 1-3mm, 3-5mm, 5-8mm, 150#F, 200#F, 325#FFor customersTN9797.001.501.00TN9595 ... for Concretion GrinderBrandGrit SizeChemical Composition(%)SIC(min)F.C(max)Fe2O3(max)Blacksilicon carbideF12-F9098 ... for Concretion GrinderBrandGrit SizeChemical Composition(%)SIC(min)F.C(max)Fe2O3(max)GCF12-F9099.00 ...