Gold Tool Graphite Crucible GLM is using conditions of graphite crucible snap heat and cold. Well corrosin resistance, impact resistance performance, to ensure the reliability of product quality. Well resistance to strong acid, strong alkali. Good heat transfer performance of graphite crucible : for greatly shorten the melting time and save energy. Available in Different Sizes : -> 65x125 -> 60x60 ->70x70 -> 75x75