1.High resistance to temperature and corrosion 2.Anti-oxidation 3.High mechanical intensity 4.low soakage 5.High purity We manufacture all set of graphite heating systems used in monocrystal silicon and polysilicon industrial furnaces, also called heat system, including graphite crucible,crucible support, sintering boats used in metallurgy,heating equipments,heat insulation screeens moulds, heat ...