硅99.57%,铝0.24%,铁0.04%,规格24目-140目
原矿石英石,规格12-13,硅>99.5%,烧白度96
硅>98%,铁0.02%
硅>97%
硅99.86%,铝0.03%,铁0.003%
硅99.886%,未酸洗,只做了磁选,未烘干