The composition of glass beads
Publish Time: 2021-03-11 Origin: Site
The composition of glass beads : SiO2 >67%, CaO>8.0% MgO>2.5% Na2O<14%, Al2O3 0.5-2.0 Fe2O3 >0.15 other 2.0%
Publish Time: 2021-03-11 Origin: Site
The composition of glass beads : SiO2 >67%, CaO>8.0% MgO>2.5% Na2O<14%, Al2O3 0.5-2.0 Fe2O3 >0.15 other 2.0%