- Specification : Al2O3 = 0.40% B2O3 = 0. 00% SiO2 = 99.20% Fe2O3 = 0.30% max - Temperature : 1600° C - Usage
- Specification : Al2O3 = 0.10% B2O3 = 1. 00% SiO2 = 98.50% Fe2O3 = 0.10% max - Temperature : 1600° C - Usage
- Specification : B2O3 = 0. 70% SiO2 = 99 <% Fe2O3 = 0.10% max - Temperature : 1600° C - Usage : Melting
- Specification : Al2O3 = 0.10% B2O3 = 0. 00% SiO2 = 99.50% Fe2O3 = 0.10% max - Temperature : 1600°C - Usage :
- Specification : Al2O3 = 0.10% B2O3 = 1. 00% SiO2 = 98.50% Fe2O3 = 0.10% max - Temperature : 1600° C - Usage