... metal casting or ceramic sample preparation, etc. Magnesium oxide ceramic crucible (1) Material: MgO 90;MgO 96 ... This product calcine uniform, possess stable quality, high purity and wellcativeness, are widely used in chemical industry, animal ... of pharmaceuticals, rubber making, and building material industry etc.(3) Application:Fireproof material, refractory, magnesium oxide bricks, MgO board, ...