... , and non-ferrous metal. Providing graphite heating systems used in mono-crystalline ... material, insulation materials, etc.)Providing graphite sealing ring ,graphite moulds,molds, utensils, crucibles used ... graphite rings ,graphite bearings, graphite leaf, etc.. Providing carbon felt, carbon cords,graphite power,graphite felt, compound carbon felt of different specifications Graphite sealing lid ...