Features 1、Graphite crucible has good thermal conductivity, can greatly shorten the melting time, saving energy 2、Graphite crucibles have good thermal stability, suitable for emergency or cold conditions of use 3、With excellent corrosion resistance, impact resistance, acid resistance and alkali resistance 4、Can melt gold, silver, platinum and other precious metals and other alloys, long service life 5、It keeps its original natural graphite of various physical and chemical properties Specification Features: Graphite crucible has good thermal conductivity, can greatly shorten the melting time, saving energy. Graphite crucibles have good thermal stability, suitable for emergency or cold conditions of use. With excellent corrosion resistance, impact resistance, acid resistance and alkali resistance. Can melt gold, silver, platinum and other precious metals and other alloys, long service life. It keeps its original natural graphite of various physical and chemical properties. Specification: Material: Graphite Color: Shown As Pictures Options: 1kg, 2kg, 3kg Option Top Diameter (mm) Inner Diameter (mm) Bottom Diameter (mm) Inner Height (mm) Outer Height (mm) 1kg 65 38 50 115 125 2kg 72 44 55 140 155 3kg 75 50 60 150 170 Weight: 330 - 465g Type: Jewelry Tools Package List: 1 * Graphite Crucible Package List