| WT-2008 | Approximate comp. |
| SiO2 | >64.00 |
| Al2O3 | > 6.00 |
| Na2O | > 0.50 |
| K2O | > 2.40 |
| CaO | >13.50 |
| MgO | >1.50 |
| B2O3 | >2.50 |
| BaO | >1.50 |
| ZnO | >4.00 |
| Fe2O3 | <0.12 |
| WT-1637 | Approximate comp. |
| SiO2 | >65.00 |
| Al2O3 | > 6.0 |
| Na2O | > 1.20 |
| K2O | > 1.60 |
| CaO | >15.50 |
| MgO | >2.00 |
| B2O3 | >1.50 |
| BaO | >0.50 |
| SrO | >1.50 |
| B2O3 | >1.50 |
| ZnO | >2.5 |
| Fe2O3 | < 0.12 |
| WT-6008 | Approximate comp. |
| SiO2 | >66.00 |
| Al2O3 | > 5.00 |
| Na2O | > 0.40 |
| K2O | > 1.80 |
| CaO | >15.50 |
| MgO | >1.50 |
| B2O3 | – |
| BaO | >0.50 |
| ZnO | >5.50 |
| Fe2O3 | <0.12 |
| WT-5005 | Approximate comp. |
| SiO2 | >65.00 |
| Al2O3 | > 4.50 |
| Na2O | > 0.40 |
| K2O | > 2.00 |
| CaO | >14.50 |
| MgO | >2.00 |
| B2O3 | >0.20 |
| ZnO | >5.5 |
| SrO | >2.0 |
| Fe2O3 | <0.12 |
| WT-1005 | Approximate comp. |
| SiO2 | > 63.00 |
| CaO | > 13.5 |
| K2O | > 1.80 |
| Na2O | > 0.90 |
| BaO | > 3.50 |
| MgO | > 1.50 |
| B2O3 | > 3.50 |
| ZnO | > 4.00 |
| Al2O3 | > 5.50 |
| Fe203 | > 0.12 |
| WT-1612 | Approximate comp. |
| SiO2 | > 64.00 |
| CaO | > 14.50 |
| K2O | > 2.50 |
| Na2O | > 0.50 |
| BaO | > 2.50 |
| MgO | > 1.50 |
| B2O3 | > 1.00 |
| ZnO | > 6.50 |
| Al2O3 | > 5.00 |
| Fe203 | > 0.12 |
| WT-1089 | Approximate comp. |
| SiO2 | 5 |
| CaO | 4 |
| K2O | 2 |
| Na2O | 1 |
| BaO | 2 |
| MgO | 2 |
| B2O3 | 2 |
| ZnO | 3 |
| PbO | 1 |
| Al2O3 | 3 |
| Fe203 | 1 |
| TiO2 | 1 |
| |
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