... 2,light silicon treatment 3,purity96%,mesh40-325 High temperature magnesium oxide powder for heating elements1, 900C-1100C2, ... temperatureHTM>1000200010≤0.41600--4, Sample element High temperature: determined on 8.0 to 6.6mm ... High temperature: Elements stuffed with this material suggested at 1050/15mins,immediate sealing after cooling. (Working temperature:1000-1100) High temperature magnesium oxide ...