The completed crystallized scale is thin and tough with good physical and chemical performance. Description:It is used in manufacturing heating element, structure casting pattern,the crucible which is used to smelt high purity metal,mono-crystal furnace heater,EDM,diamond sintering mould etc. HRD High Purity Molded Graphite Feature 1.Good electrical and thermal conductivity 2.High temperature resistance 3.Resistance to oxidation 4.Corrosion resistance 5.Thermal shock resistance 6.Easy precision machined