High purity alumina is widely used in manufacturing high voltage sodium lamps,ruby,sapphire,LED crystal growth,ceramic substrate,catalyzer carrier,fluorescent materials and abrasive materials.
  Our high purity alumina is very suitable in manufacturing sapphire crystal growth and transparent ceramics.The quality obtain the consistent approval by the International market,like Russia.American,Europea.Korea,Japan,China and so on.
  The purity can reach 99.995%-99.999%.Partical size ranges in 0.1um-10um, The main impurity content, like fe,si,ca and so on,is very low.