... fine powder,featured with low sodium content,steady transition rate,good flowability,steady shrinkage These products consist of three kinds ,the ... .040.050.020.073.974.11.060-70sphere-like powder,good flowability, less shrinkage rate, designed for making ceramics fittings by ... meterial of granulation, ceramic fittings by coating,iso-static pressing. high purity calcined alumina for fine ceramics