Chemicals for industrial purposes for use in ceramics for the gas and oil industry; Ceramic powders and granules used in manufacturing wear-resistant and corrosion-resistant ceramic components for the oil and gas industry, primarily composed of silicon carbide, titanium diboride, tungsten carbide, silicon nitride, boron carbide, titanium diboride, zirconia, alumina, mullite, spinel and mixed oxides, or primarily composed of composites, namely, tungsten carbide-cobalt, tungsten carbide-nickel,...