1. Good volume stability
2. High density and low porosity
3. High temperature load creep performance
4. Clay quality fire anchor brick is selected at low temperature below 1100 ℃
5. High-grade aluminum anchor brick is selected at high temperature above 1100 ℃
3. High-grade aluminum anchor brick is used at high temperature above 1250℃
5. High-grade aluminum anchor brick is selected at high temperature above 1100 ℃
3. High-grade aluminum anchor brick is used at high temperature above 1250℃