... good resistance to chemical erosions and thermal shock.2. Graphite crucible is ideal for the melting of gold, silver, ... a tool for smelting jewelryWe may supply the following isostatic graphite material:Rods: dia.300x400, dia.400x400, dia.450x400, ... as Monocrystalline Silicon,EDM(electrical discharge machining),kinds of graphite moulds in continuous casting,precious Metals Smelting,high temperature ...