High temperature industrial cupel

1.    Made of Magnesite

2.    Used for smelting and assaying

3.    High thermal shock resistance

4.    Magnesia: ≥95%

5.    Silica, Silicon dioxide: 0-5%

6.    Property: high refractoriness(1100 centigrade degrees),rapid absorption(70%),and recovery rate of 97%-98.5%,easy to use, without milling