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Qi Nai has been deeply involved in the WFA industry for more than 40 years,and we are a professional manufacturer and exporter specialized in research, development and production of abrasives materials and their products, refractory raw materials and their products, and other kinds of products. 
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High Temperature Calcined Alumina

High temperature calcined alumina powder is produced from industrial alumina used as raw material, at the appropriate temperature calcined into crystalline stable alpha alumina as raw material after the ball into alumina powder. It can be widely used in such as electronic equipment, structural ceramics, refractory material, wear, polishing materials, etc.

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