Hard Material
basic information
Silicon carbide(black,green), Boron Carbide, Diamond,White Corundum, Ziron sand ,Zirconia, Rare earth polishing materials,Tungsten Carbide,Silicon Nitride,Chromium carbide,Chromium Oxide,Brown Corundum,Chrome Corundum, Grinding wheel materials,Neodymium oxide,nature color sand etc...