1.石英砂 QUARTZ SANDS
高纯硅砂 high purity grade:SiO2:99.95%min-99.8%min Fe2O3:3ppm max-30ppm max, size:2-200 mesh
精制硅砂deliberated grade:SiO2:99.8%min-99.0%min Fe2O3:50ppm max-0.03% max, size:2-325 mesh

 

2.天然水晶粉 NATURAL CRYSTAL POWDER
SiO2:99.90%min-99.99%min , size:2-300 mesh

3.硅微粉 MICRO-SILICA POWDER
SiO2:99.5%min-99.0% min, Fe2O3:0.02%max,Al2O3:0.3% max, size:200-800 mesh