Chemical compositions, namely, silicon nitrite ceramics; silicon nitride compositions for the manufacture of technical ceramics; ceramic materials in the nature of powders, film, resins, and glazing used in the further manufacture of ceramic-sintered plate, sheet, block, pipe, tube, rod, column, angular pole, box, case, honeycomb body and lotus root body for the manufacture of parts and components for devices, apparatus and machines for use in the automobile industry, energy production indust...