Descripción del producto

 Sarah foundry grade sand (particle size *0 mesh ***0 mesh) to high-quality bauxite as raw material, and then blown into the smelting remelting ball, ball> *5% roundness> *5%, refractoriness> ***0 ℃, Strength> *5MP, surface finish, breathable performance, precision casting, coated sand, hard sand from a new casting materials, Sarah sand casting production in the disappearance touch test systems were applied, the sand is sand artificial beads, neutral, refractoriness up to ***0 ℃.