الوصف

refractory materials, abrasive materiasl, alumina, corundum, coated abrasives, castable refractory, ceramic refractory . "Shaolin" brand sub-white corundum is one of our main products, and manufactured in electric arc furnace using high-quality bauxite as major starting material.After calcinations and acid treatment to sub-white corundum, its residual carbon content and impurity are reduced, so that products do not chalk and burst in application. johnduan*5 at yahoo dot com