Thermal stability,corrosion resistance and impact resistance.Test analysis tools and ingot mould for making bars or necklace pendant charms.Used for smelting of gold and silver or other precious metals.Graphite Ingot Melting Casting Refining Scrap Bar.Thermal conductivity well,good resistance to and alkali.Colour:blackMaterial:graphitePackage Contents:2 * Graphite Ingot MouldNote: Products with electrical plugs are designed for use in the US. Outlets and voltage differ internationally and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing.Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.