1GRAPHITE MATERIAL: Graphite ingot mold is made of graphite material, which does not affect the metal purity during the metal refining process. 2GOOD THERMAL STABILITY: Graphite ingot bar mold has fast hot and cold conditions and good thermal stability to create a refined refining effect for you. 3ENERGY SAVING: Rectangular graphite ingot mold can withstand 2000, shortening melting time and saving energy. 4EXCELLENT PERFORMANCE: Gold silver graphite ingot mold has excellent performance with good impact resistance and acid and alkali corrosion resistance. 5SCOPE OF APPLICATION: Graphite ingot mold is suitable for experimenting and melting non ferrous metals such as gold and silver, brass, copper, aluminum and zinc. 6TEST AND ANALYSIS TOOLS: Graphite ingot bar mold can also be used as a test and analysis tool and ingot mold for making bar or necklace pendant ornaments.