Features:1. According to the use conditions of graphite crucible, the thermal stability is good.2. Good corrosion resistance and anti-impact performance ensure the reliability of product quality.3. Good resistance to strong acid and strong alkali.4. Good heat transfer performance: greatly shorten the melting time and save energy.5. Ash content is less than 0.1% , to ensure the precious metals in smelting is not contaminated.6. In high-temperature using process, it got small thermal expansion coefficient.7. It has certain strain resistance to the thermal shock, quenching.8. With long service life.Specification:Condition: 100% Brand NewItem Type: Graphite MoldMaterial: GraphiteColor: BlackSize: Approx. 7.1 * 5.1 * 1.1cm / 2.80 * 2.01 * 0.43inchWeight: Approx. 180gPackage List:1 * Graphite Crucible Mold (5 Grooves)