1GRAPHITE MATERIAL: Graphite casting mold is made of graphite material, cast in the metal refining process will not affect the metal purity. 2SCOPE OF APPLICATION: Graphite mold is suitable for experimenting and melting gold, silver, brass, copper, aluminum, zinc and other non ferrous metals. 3GOOD THERMAL STABILITY: Ingot graphite mould has fast hot and cold conditions and good thermal stability to create exquisite refining results for you. 4WITHSTAND 2000 : Gold silver graphite mold can withstand 2000, shortening melting time and saving energy. 5EXCELLENT PERFORMANCE: Casting ingot mold has good impact resistance and acid and alkali corrosion resistance with excellent performance. 6WIDELY USED: Ingot mold can also be used as a test and analysis tool and ingot mold for making bar or necklace pendant ornaments.