... sharpening stone, oil stoneIngredients: corundum, carbide silicon, china clay, feldspar and dextrin Shapes: Rectangular, square, boat, bar; We can do ... : sharpen fine edge on all type of tools including knives, blades and precision cutting tools or polish the surface of above ... firing OEM service is available, we do good performace and competitive price, many branded abbrasive tools are produced in ...