refractoriness ( תואר )
1770°< Refractoriness< 2000°
Usage
Refractory industry,fire-resisting materials,Abrasive
Raw materia
Black Quart Sand,Anthracite Coal Tar
Max Service Temperture
1900℃
Micro hardness
2840-3320 kg/mm2
Bulk density
1.45-1.56g/cm3