Providing graphite sealing ring used in furnaces and particular amorphous metal ,rare metal, ... , thermal insulation material, insulation materials, etc.)Providing graphite sealing ring ,graphite moulds,molds, utensils, crucibles used in furnaces(such ... crystallizers for the growth of ferrous metal, etc. .Providing mechanical seal parts ,graphite rings ,graphite bearings, graphite leaf, etc.. Providing ...