Refractory Materials are usually non-metallic materials having those chemical and physical properties that make them applicable for structures, or as components of systems, that are exposed to environments above 1,000 °F (811 K; 538 °C)。

White fused aluminium

  
 Specs:
AI2O3: 99% min
Fe2O3; 0.1% max
Na2O: 0.35% max
Size: F10-F280

 Specs:
AI2O3: 99% min
Fe2O3; 0.1% max
Na2O: 0.35% max
Size:0-1mm, 1-3mm, 3-5mm, 5-10mm 90% min