超细高纯石英粉325目-5000目、硅微粉,硅>99%,铁76ppm,自然白度96-98,半导体电子陶瓷专用产品
硅>98%,铁0.02%
半透精砂#板材砂#滤料#填充料8-16 16-26 26-40 40-70 70-120
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
硅99.50%,铁0.019%,烧白96.6