石英砂石英粉硅微粉,98%≤硅≤99.5%,高白精砂,B砂、普砂、釉料用石英粉,熔块用石英粉,200目 325目(90-98白),400-2500目硅微粉
硅99.95%,铝0.006%,铁0.0053%,镁0.0012%,钙0.009%,钾0.0069%,白度96
硅99.26%,铝0.14%,铁0.26%,钠0.13%
硅99.2%,铝0.37%,铁0.316%
硅99.5%,铁0.05%
40-140目,铁100ppm
4N高纯石英砂,70-140目,硅99.991%,白度93