2. GOOD THERMAL STABILITY: The graphite ingot mold has fast hot and cold conditions and good thermal stability to create a sophisticated refining effect for you. 3. ENERGY SAVING: The rectangular graphite ingot can withstand 2000℃, reducing melting time and saving energy. 4. EXCELLENT PERFORMANCE: The gold and silver graphite ingot has excellent performance with good impact resistance and acid and alkali corrosion resistance. 5. SCOPE OF APPLICATION: Graphite ingot is suitable for experimenting and melting non-ferrous metals such as gold and silver, brass, copper, aluminum and zinc. 6. TESTING AND ANALYSIS TOOLS: The graphite ingot form can also be used as a testing and analysis tool and an ingot to make ornaments from a pendant or necklace. . Graphite Ingot Form Rectangular Gold Silver Material: graphite Size: External: approx. 70x40x30mm / 2,8x1,6x1,2 inch Internal: approx. 60x30x25mm / 2,4x1,2x1,0 inch Product Description: Graphite products are more durable than ordinary material products more than 2 times, longer service life, more resistant to high temperatures above 2000℃ The capacity of this product is 45 ml, gold capacity 850 g/30,0 oz, silver capacity 425 g/15,0 oz . Graphite Ingot Form Rectangular Gold Silver . Graphite Ingot Form Rectangular Gold Silver