Casting Refractory Materials 25um Quartz Poweder for Shell molding
99.6% SiO2 high whiteness fused silica powder Melted quartz powder 25 um for Precision casting.
Model:OBT-25um
99.6% SiO2 high whiteness fused silica powder Melted quartz powder 25 um for Precision casting.
Model:OBT-25um
Precision casting use high purity fused silica sand 100-200 mesh SiO2 99.7%
Model:OBT-100-200