氧化铝坩埚(刚玉坩埚)：是以电熔刚玉 莫来石成型经高温烧结而成。
Corundum—Mullite Board: It is made by high sintering corundum and mullite together.
·优点：耐高温，抗腐蚀，荷重软化点高，适合在各种气氛条件下的高温炉中使用。
　 Advantage: Bear the heat, the anti- decay, refractoriness under load is high. It is suitable to be used in different high temperature kiln stove.
·常用规格（mm）：
Dimension in common usage (mm):
　　 150*150 150*300 150*320 295*295 300*300
　　 310*310 320*320 330*330 340*340
　　 注：厚度可按客户要求生产
　　 Note :The thickness can be produced by customers’ require
　     非采购客商谢绝洽谈!