Providing graphite sealing ring used in furnaces and particular amorphous metal ,rare metal, and non-ferrous metal. Providing graphite ... thermal insulation material, insulation materials, etc.)Providing graphite sealing ring ,graphite moulds,molds, utensils, crucibles used in furnaces( ... used for particular amorphous metal ,rare metal, and non-ferrous metal and crystallizers for the growth of ferrous ...