High purity graphite crucible our company specializes in manufacturing various types of high purity graphite crucibles, with a purity of 99.99%. It is mainly used for smelting precious metals such as gold and silver, silicon purification in the single crystal and polycrystalline industry, vacuum aluminum plating, and various materials in the smelting industry requiring high purity and pollution-free. Users from all walks of life are welcome to buy!