天然石英砂、玻璃原料等,含硅99.2%-99.5%,含鐵600ppm-80ppm,目數20-120,非石英石機制砂非海砂
硅>98%,鐵0.02%
半透精砂#板材砂#濾料#填充料8-16 16-26 26-40 40-70 70-120
硅>97%
硅99.86%,鋁0.03%,鐵0.003%
硅99.886%,未酸洗,只做了磁選,未烘干
硅99.50%,鐵0.019%,燒白96.6